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Atlantic
a day ago
- Health
- Atlantic
You Can Change Your Personality
The guest on this episode of Radio Atlantic would not describe herself as 'fun at parties,' but at least she knows it. 'I've never really liked my personality,' wrote Olga Khazan in 2022, 'and other people don't like it either.' A few years ago, Khazan set out to change her personality, a task many people think is impossible. As Khazan explains, in the late 1800s, William James, who is considered the father of modern psychology, developed a theory that a person's personality is set in plaster around age 30. James himself was depressive and neurotic, and he suffered from what he called 'soul-sickness.' Thankfully, he was also incorrect. Later research showed that people can, in fact, shift even core parts of their personality, if they work at it systematically. After consulting with the experts on personality plasticity and then setting a deadline, Khazan put herself through an intense experiment intended to make herself more likeable, to herself and others. Her evaluations were not soft and subjective but numerical; Khazan tested and scored herself on a range of key personality traits at the beginning and end of the experiment. In this episode, Khazan and I talk about two of those traits: extroversion and neuroticism. Khazan shares how for her book Me, But Better, she dragged herself to improv classes and meditation lessons, and how having a baby threw a kink in her experiment. The following is a transcript of the episode: Hanna Rosin: There is one thing I really don't like about myself. I mean, there are several, but I'm only going to tell you about this one right now. It can be the most beautiful day—like springtime, cherry blossoms every direction you look—and immediately, instinctively, my mind will scan for the one thing wrong. Like, Gross! There's pollen all over that car. I have definitely tried over the years to do this or that to counteract it, like cultivate a more positive mindset or start my day by saying three things I'm grateful for. But I think there's just a part of me that thinks, Well, that's just how Hanna is, like there's some core of Hanna Rosin, whether it's genetic or epigenetic or learned, that will always scan for the negative. I'm Hanna Rosin. This is Radio Atlantic, and today we're talking about personality—what it is and whether it's something you can actually change. Olga Khazan: So, many decades ago, William James did come up with this theory that personality is sort of set like plaster at age 30, and it never softens again after age 30. Rosin: That's staff writer Olga Khazan. And the William James she's talking about is considered the father of American psychology. But his view of personality doesn't hold up to modern scrutiny. Khazan: There wasn't a whole lot of research on personality or psychology. It just wasn't really a developed science. So when researchers started doing more modern studies about this, what they found, after following the same group of people for decades and decades, is that most people actually do change, and if they do stuff to try to change, they kind of change even faster. Rosin: Like me, Olga had things about her personality that she wished she could change. And when she learned that it's not so set in stone, she thought she'd give it a try. She made it a monthslong project, an experiment. And she wrote about it in a new book called Me, But Better. [ Music ] Rosin: So I love this idea. I find it very inspiring, as I'm sure a lot of people do. Why did you start it? Like, obviously, there were things about yourself that you didn't like—which there are things about all of us that we don't like, but what was it in your case? Khazan: Yeah, so on top of not liking certain things about myself, something that I noticed is that I just wasn't very happy, and I wasn't enjoying my life to the extent that I thought that I could. So what started this was I had just a really rough day. I was in Miami in December, so definitely nothing to complain about environment-wise. I had to go get professional photos taken for our job, and I had to get a haircut before the photos were taken. And so I go; I book a hair appointment. This haircut is terrible. It's probably one of the worst haircuts I've ever gotten in my life. Rosin: Details. Details. Was it a bang problem? Khazan: It wasn't a bang problem. Okay, I try to emphasize every time I get my hair cut that my hair does not take layers well. And they always do layers, despite what I explicitly said. And maybe I need to just be more straightforward about it. But anyway—so there was like a mushrooming effect because of the attempt at layers. Rosin: (Laughs.) I'm sorry. I'm sorry, yeah. Khazan: (Laughs.) Anyway, so I'm leaving the hairstylist's. I'm like, Oh my God. I look terrible. I had to go directly to the photo session, where I got professional photos taken that looked really bad, in my opinion, and then I had to, right away, drive on to the grocery store to get a bunch of groceries for dinner that night. And as I was driving, I went the wrong way and got stuck on this island that cruise ships launch from. Then, once I recovered from that, I got to the grocery store, and as I was leaving, my shopping cart locked. And I had to drag the shopping cart across the parking lot to my car. And while this all was happening, my boss was Slacking me edits on a story. So I do these edits sitting in this hot car. I drive on, I get back to the Airbnb, and I just freak out. Like, I honestly just had a meltdown—not a panic attack, but crying, chugging wine, just screaming, like, I hate everyone. And I settled down, eventually, and I was sort of like, Why do I react so badly to things that are kind of minor? Honestly, just even recounting that day as a new parent, I'm kind of like, Eh, so. That's bad, but that's not that bad. And I kind of realized that it was my personality that was making days like that worse than they had to be, that was undermining my happiness in those moments. Rosin: Okay, I just wanna question that for one second: First of all, I'm sorry you had that day. It sucks, and I understand you just want to be frustrated. Like, you don't wanna be screaming and crying. You don't want to have a breakdown. You just wanna be casually frustrated. I think a lot of people, when they are sad or they feel unhappy, the traditional route is: See a shrink. Get on meds. You know—whatever—journal. I don't think that I would have thought, Okay, it's my actual personality. Like, to look at yourself, break your personality down, I mean, it's interesting. It was an interesting response you had, and I'm wondering how you even knew in that moment to look at yourself and think, Oh, it's my personality. Khazan: Yeah, so, actually, seeing a shrink and taking medication do change your personality, also. Rosin: Interesting! Khazan: And that is to say that personality change is kind of the root of a lot of different types of personal growth and self-improvement. So what I was kind of describing just now is a high level of neuroticism, which I did have. And so bringing that down is personality change. And one way to do that is through therapy and medications. But I think kind of beyond just neuroticism, I was also just kind of unhappy with other parts of my life. Like, I honestly just didn't socialize much. I kind of reflexively didn't socialize. I didn't have a lot of friends, which to me was a different thing than neuroticism. And then I kind of just was really snippy with my boyfriend at the time—my husband now—and honestly, would get in a lot of fights with my friends, which is, like, this other trait called 'agreeableness.' So I don't know. It felt more, like, all-encompassing than just the I need to handle my stress better. Rosin: Right. Okay. So you've been mentioning some of the main traits that you outline in your book. Can you just lay out the different components so we can follow you through this experiment? Khazan: So there's five traits that make up personality, and we all have these five traits inside of us. And they can be remembered with the acronym OCEAN. So it's o for 'openness to experiences,' which is like creativity and imaginativeness; c for 'conscientiousness,' which is like being on time, being super organized, being really diligent; e for 'extroversion,' so being sociable, cheerful, active; c for 'agreeableness,' which is being warm and empathetic and trusting; and n for 'neuroticism,' which is being neurotic, being anxious and depressed. Rosin: Okay. So that's how you started to break your own problems down. Like, there's this bucket, that bucket, that bucket. We won't do the whole OCEAN of personality, but I really want to talk about a few that interest me the most. Maybe we'll start with extroversion, because being outgoing is a common goal. Lots of people say, Oh, I want to have more friends, particularly post-pandemic. How extroverted were you at the start of this process? Khazan: Let me look up my exact score. Rosin: Oh, there were scores? Khazan: Yes! Rosin: Okay, so you actually get a number. Khazan: Yeah, when you take the personality test I was taking, you do get a number. Rosin: That's a little brutal. Khazan: Yeah. Oh, okay—I scored in the 23rd percentile, which is very low, especially when it came to being friendly or cheerful. Rosin: Uh-huh. Interesting. Okay. (Laughs.) When you first got that number, how did that feel? Khazan: I was like, That checks out. Rosin: (Laughs.) Uh-huh. You weren't surprised. Okay. So how did you go about this? Like, that's the kind of thing where someone would say, Okay, well, I'm just not that extroverted, and one road would be acceptance: I'm just not that extroverted. I'm going to stay home and watch TV a lot. Khazan: Yeah, and I did that road for a long time. So one kind of interesting twist here is that when psychologists take a bunch of introverts and they tell them, Go out and act like extroverts for a few minutes. Go socialize. Go hang out. And then they come back and they're like, How do you feel? They actually say they feel happier. And they also say they feel more like themselves. Rosin: Something about your saying that makes me nervous. I think it's just because of the Susan Cain book Quiet, where we've come to appreciate the power of introverts, you know? What do you say about that? Khazan: So yeah, I really, really liked the book Quiet, and I really like Susan Cain personally. I just think that there are benefits for introverts to occasionally act like extroverts. I think it's okay to still identify as an introvert and to appreciate all of the perks that come with that, but to also occasionally be able to at least try on this more outgoing personality trait. Rosin: So when you set out to try and change this part of yourself, you know, raise your score—we'll just put it that way, concretely—were you saying to yourself, I want to change Olga and make Olga not an introvert? Or, I want to try on extraversion sometimes, like a costume? Or, I want to change my score? Like, what was your goal? Khazan: My goal was to change my score, so to be more extroverted. I didn't think it would work well enough to make me an extrovert. In the end, I think my latest test that I took did put me technically in the extrovert category. But I didn't think that it would work that well. Rosin: Okay. So how did you do it? Khazan: I signed up for a bunch of activities and went to them. I signed up for improv comedy, a sailing club, a bunch of meetups. And I threw a party at my house for the first time. Rosin: Wow. And all the while, just so people understand what this kind of experiment is like, in case they want to try it, are you uncomfortable? Like, surely, you're going against your, what you initially called, natural inclinations. Khazan: So I ended up doing improv for about eight months or so. And probably for the first six months, every time I went, I felt this overwhelming sense of dread. Like, you almost wish that you could get in a car accident on the way there so that you wouldn't have to go. Rosin: That is extreme. I totally sympathize. I understand. Yeah. Khazan: Like, is there any way to get out of this? Any way? Like, Please, God, don't make me go. Like, I have extreme stage fright. And so you get there, and you're all sitting in a circle, and then at some point you get up, and you just start doing improv with the other people who are there. Rosin: And the reason it helps you become extroverted is because it's relational. Like, you have to be deeply attuned to this total stranger. You have to be on the stage. You have to perform. Like, it just forces you into actions that are extroverted. Khazan: Oh, yes, and it makes you become way more comfortable with chaos because everyday conversation is chaotic, but improv is even more chaotic than that. Rosin: Right. And then, so let's say the 20th time you're going to improv class, does the initial dread fade, or it's always that cycle? Khazan: I think, over time, it did fade, but even before it completely went away naturally, I would start to feel it, and I would kind of tell myself, like, No, you're gonna be fine. It's just improv. It's okay—you're gonna feel good after. You know, it's very similar to how I talk to my son now. It's like, No, you like this formula. This is the good kind. (Laughs.) Rosin: That's so funny. So this is tricky to understand. So by the end, you're doing it with a little bit less dread. You're still talking yourself into it. You're able to do it, so you're not avoiding it; you're doing it. You're, at times, enjoying it, but it's still not your natural inclination. Khazan: So I would say it's not to do improv, but it's to connect with other people when I'm feeling down. Like, if I'm feeling isolated and withdrawn, I don't feel like the solution is just to spend more time by myself. I feel like it's to connect with others and sort of get out of my head a little. Rosin: But that actually seems revolutionary. Like, if you think of one of our largest problems now, which is lack of connection, the idea that you can actually work at it, you know, approach it like a project and change it slowly, such that what you got—okay, maybe you're not going to be on SNL, so that's not your destiny—but what does change is that you don't go deeper into yourself when you are feeling whatever you're feeling. Like, you seek some kind of connection. And research does show that that's healthy. Khazan: Yeah, and that's kind of the science behind why extroverts tend to show up as happier. They kind of just spend a lot of time around other people, and other people tend to make us happy, even though we can all think of times when other people have not made us happy. But, you know, I'm really glad I did that before having a baby, because I think that my approach to new motherhood would have been totally different otherwise and much more isolating if I hadn't done this experiment to see, Okay, actually, being around others and connecting socially, and even in a way that's silly and doesn't totally make sense is, like, still a good thing. Khazan: Right now, my extroversion—it says it's very high. Rosin: Very high. So it went from very low to very high. Khazan: Yes, it's not in the top 10 percent. I would say it's probably, like—I don't know—60th percentile now. Rosin: I know, but you're getting all ambitious now. Like, you want to be in the top ten percent. Khazan: I didn't get into the Harvard of extroversion. (Laughs.) Rosin: Exactly. (Laughs.) Khazan: But yeah. Rosin: That's amazing. Okay. Very, very impressed. And I feel like people should try it. [ Music ] Rosin: So that was extroversion—the e in OCEAN. After the break, Olga takes us through another section of her book: the n —the negative, nervous, capital- n 'Neurotics.' [ Break ] Rosin: Okay. Let's move on to the second trait that I want to talk about, which is neuroticism, the n of OCEAN. That is one that I think many people would like to change about themselves, myself included. What did your starting point there look like? Khazan: I think I scored higher than, like, literally everyone else on earth. Rosin: (Laughs.) Khazan: Oh, I was in the 94th percentile. Rosin: So you did get into the Harvard of neuroticism. Khazan: Yes. Yeah. Yeah, I'm graduating. Rosin: Excellent. And we're laughing, but the feeling—I mean, everyone's version of neurotic is different, but can you talk a little bit about your own version? Like, what is it that bothered you about your neuroticism? Khazan: So I was basically always anxious. Like, there just wasn't a time when I wasn't anxious. I was constantly thinking about stuff in the future that could go wrong, or stuff in the past that did go wrong, and, like, Why did I allow it to go wrong? When good things would happen, there was no living in the moment or appreciating the good thing. It was, like, onto the next thing that could go wrong. Or like, Oh, this sunset is great, but the one yesterday was better. You know, like on vacation, we would get to some beautiful attraction or landmark of some kind, and I'd be like, Okay, what's next? Rosin: Right. Khazan: That kind of thing. Yeah. Rosin: So you started out with Harvard-level, high-baseline neuroticism. This one is hard to face, I will say, so what was your process of trying to change it? Khazan: So I followed this one study that's been done on personality change, but a lot of those suggestions were, like, a lot of gratitude journaling—and I did do that—but a lot of it was also meditation. Rosin: Ugh. Khazan: —which, I know. Rosin: Is there anything else? Khazan: I know. I was, like, Seriously? I was diving so deep into the psychology. Is there something where I can, like, walk backwards for a mile and be cured? Rosin: You know how there are headlines sometimes that are like: 'This is the One Thing You Need to Do.' It's always meditation. So I'm like, You're not surprising me in this headline. Khazan: Yes, yes. Yeah, it's always meditation. It was indeed meditation. So it was a meditation class that I took. It was, like, kind of like Buddhism for Dummies —like, during the day, we would all gather and they would do this PowerPoint with kind of very basic Buddhist ideas. And then, we had to meditate for 45 minutes a day. [ Music ] Rosin: As beginners? Khazan: Yes. Rosin: That's an intimidating amount of time. Khazan: It was really, really, really hard. I honestly don't think I could do it with a kid now. I don't really have 45 minutes anymore. But I think if people are trying this at home, I think they should start with way less, because it can feel so daunting that you're like, Why even bother? You know? And there's a lot of meditations out there that I also found effective that are much shorter, like 10 or 15 minutes. Rosin: So you, starting out as the person with high neuroticism, face meditation as a person who sees meditation all over the culture, so there's already a barrier to entry. So how do you slide into that one? Because I actually understand the benefits of meditation; I just also understand the cultural ubiquity of meditation and, thus, the resistance to it, you know? So how do you sneak your way in so that it's helpful? Khazan: Yeah, so I basically was, like, dragged kicking and screaming. And unlike with improv, I didn't enjoy it at any point. So we would have these phone calls with our meditation teacher to see how things were going, and basically all my phone calls were all about how much I hated meditation. Rosin: Which is maybe neurotic, like— Khazan: I'm not doing it right. I was like, Can I listen to music? Can I listen to a podcast? Can I wash the dishes? She's like, No, you need to be there and, like, sit with whatever comes up. And whatever stuff she said, I was like, That doesn't make any sense. We had an all-day meditation retreat, where all we did was meditate all day. It was, like, the worst day of my life. I hated it so much, like—oh my God. And they were—at one point I think they got frustrated with me, because they're like: You sound like you're striving, and you're not supposed to strive in meditation. And I was like, Yeah, of course I'm striving. So, yeah, it was just so hard and so painful. And it worked. Rosin: Whoa! Okay, so can you describe how the turn happened? I think many people would want to know. Khazan: So I don't think there ever was a turn. I sort of hated it all the way through the retreat. And then I took the test not long after the retreat. And my neuroticism had actually fallen so much that it was considered low. It was in the 39th percentile. Rosin: Wait—you went from 97 percent to low? Khazan: Yeah, I no longer scored, like, extremely high or whatever it was. But I will say, it was mostly because of a change in my depression score. Like, so I have really, really high anxiety, and I also had high depression, and my depression went down by a lot, and my anxiety also went down a little but not by as much. Rosin: And what do you attribute that to? I mean, that's amazing. Like, you know, going down on depression or anxiety is fantastic. So what do you attribute it to? Do you attribute it to the meditation or to the act of focusing on yourself for some amount of time so that you're taking your depression seriously, or what was it? Khazan: So two-part answer here. One is that—so this class that I took called MBSR has gone head-to-head with the antidepressant Lexapro, and it actually works, allegedly, as well as Lexapro. So there is kind of precedent for it bringing down anxiety and depression. And I think the answer—maybe it was the meditation just working in the background, like sweeping away the cobwebs or whatever without me noticing. You know, because you're supposed to just let your thoughts pass like clouds or whatever. But I think the more kind of immediately efficacious thing was that these Buddhism for Dummies lessons were very helpful for me. Even though I thought they were kind of stupid, I found them really helpful. And in particular, my meditation teacher would always say, Things happen that we don't like. And I realized that I was someone who was very filled with self-blame for things not going the way they were, quote-unquote, 'supposed' to go. Like getting stuck in traffic—I would get this overwhelming rage at myself whenever I was stuck in traffic. And it was—it's traffic. Like, you know, there's nothing you can do about it. But I realized that I had this, I don't know, wrong image of other people's lives as perfect because they manage them perfectly, and that I'm the only one who can't. And for some reason, this, like, PowerPoint-focused Buddhism class helped me get rid of some of that. Rosin: I believe everything the Buddhists say. I have never found any of it unhelpful. It's always incredibly helpful if I can just get myself to sit down and pay attention. Khazan: Yes. Rosin: Okay, so basically, this experiment was successful for you. Khazan: Yes, yes. Rosin: And when did you do it? Khazan: I did this right before I got pregnant. Rosin: All right. So that's an important marker. So that would be, like, two years ago you did this experiment. Now what has stayed with you about it? Khazan: S I will say that right after I had Evan, my scores got all—like, I'm looking at my graphs of my scores, and there's like a huge dip on all of them right after the baby came, because postpartum depression can affect all these things. Also, you're not socializing, you're not being nice, you're not being conscientious, you're not showering in that immediate postpartum period. So they all crashed and burned right after the baby came. But I actually just recently took the tests again. You know, he's 1-year-old now, and I just took them again, like, a month ago. And they actually went back up—not quite to the level as they were when I was doing the book, but back up for the most part, I would say, across all the traits. And I think that's just because I've been able lately to get back more into some of what I was doing for the book, not all of them. Rosin: Interesting. Okay. So how you're using this in your life, this whole experiment that you did, is: First of all, it convinced you that you can change things about elements of your personality. You know that to be true now. And so you have these markers, and they essentially serve as goals. And if you're finding yourself to be unhappy, then you can work on one or another of these goals. Like, it just allows you to be more self-aware, notice things about yourself. And it gives you some very concrete tools to fix it. Khazan: Yeah, that's how I see it. And that's—I mean, Nate Hudson, the researcher whose work kind of forms the backbone of the book, he really describes personality traits as tools. Like, they help you get what you want in life. Which is why I kind of shy away from the, like, Don't change your personality if you like yourself, because, you know, I liked myself before, and I like myself now. But now I feel like I know how to get more out of life. Rosin: That's really, really interesting. You wouldn't have minded yourself if you'd been a somewhat isolated mother who didn't see that many mothers. Khazan: Yeah, I don't think I would've. You know, I think I would have had a much lonelier and more stressful postpartum experience. I think I would have just thought that's what it is like. Rosin: Like, that's Olga's version of parenting, and that's okay. Like, you wouldn't have hated yourself for it. Khazan: Yeah, exactly. But instead what I did is I joined this new-moms group, and in general I just have made more of a point of reaching out to other new moms, and just kind of getting together as much as possible, or even just keeping in touch over WhatsApp or whatever—sharing experiences or just, like, What the hell is this? Is this normal? That type of stuff. That has honestly made it so much less bad, I think, and less isolating. Like, I wouldn't say that I have a village, but it's just nice to not feel like you're the only person in the world who's ever had a baby. Rosin: Yeah. So you have the advantage of going into motherhood with all of this understanding of personality. Have you found yourself talking about your son or thinking about your son with some of this research in mind? Khazan: Yeah, you know, Evan is very smiley, and he's just very happy. He smiles very easily. He smiles at people he knows and likes. And my parents tell me that I was not like that. (Laughs.) Rosin: (Laughs.) Thanks, Mom. Yeah. Khazan: So the way I talk about it, I'm like, Oh, he gets that from my husband, Rich. And I don't know. I'm just like, I really—sorry, I'm trying not to choke up. Rosin: That's okay. Khazan: I really, like, want to not mess that up for him. Like, I want to—I don't know. Sorry. Rosin: No, that's okay. You want to keep him happy. Khazan: Yeah, not keep him happy, but I hope that that continues. I don't know. Rosin: Yeah. No, I thought you were going somewhere different. I thought what you were going to say is, I don't want to think about his personality as fixed. Like, I want to allow him—like, if he wants to be unhappy, or if he wants to be a different way, or throw a temper tantrum, that's okay. Like, I will keep in mind that we can, you know, move towards a goal later. But I think what you're saying is more simple and beautiful, and I appreciate that. I'm sorry that your mom was—it was like when my mom used to tell me how much cuter my brother was than me as a baby, every single time we look at baby pictures. Khazan: Lovely. Rosin: Yeah. Well, Olga, thank you so much. I feel like this will inspire a lot of people to try it. So thank you so much for writing it down. Khazan: Yeah, absolutely. Thanks so much for having me on. [ Music ] Rosin: This episode of Radio Atlantic was produced by Kevin Townsend and edited by Claudine Ebeid. We had engineering support from Rob Smierciak and fact-checking by Genevieve Finn. Claudine Ebeid is the executive producer of Atlantic audio, and Andrea Valdez is our managing editor. Listeners, if you like what you hear on Radio Atlantic, remember you can support our work and the work of all Atlantic journalists when you subscribe to The Atlantic at
Yahoo
2 days ago
- Health
- Yahoo
Marijuana use dramatically increases risk of dying from heart attacks and stroke, large study finds
Get inspired by a weekly roundup on living well, made simple. Sign up for CNN's Life, But Better newsletter for information and tools designed to improve your well-being. Using marijuana doubles the risk of dying from heart disease, according to a new analysis of pooled medical data involving 200 million people mostly between the ages of 19 and 59. 'What was particularly striking was that the concerned patients hospitalized for these disorders were young (and thus, not likely to have their clinical features due to tobacco smoking) and with no history of cardiovascular disorder or cardiovascular risk factors,' said senior author Émilie Jouanjus, an associate professor of pharmacology at the University of Toulouse, France, in an email. Compared to nonusers, those who used cannabis also had a 29% higher risk for heart attacks and a 20% higher risk for stroke, according to the study published Tuesday in the journal Heart. 'This is one of the largest studies to date on the connection between marijuana and heart disease, and it raises serious questions about the assumption that cannabis imposes little cardiovascular risk,' said pediatrician Dr. Lynn Silver, a clinical professor of epidemiology and biostatistics at University of California, San Francisco. 'Getting this right is critically important because cardiovascular disease is the top cause of death both in the United States and globally,' said Silver, who is also senior adviser at the Public Health Institute, a nonprofit public health organization that analyzes marijuana policy and legalization. Silver is the coauthor of an editorial published with the paper that calls for change in how cannabis is viewed by health professionals, regulatory bodies and the public at large. 'Clinicians need to screen people for cannabis use and educate them about its harms, the same way we do for tobacco, because in some population groups it's being used more widely than tobacco,' she said. 'Our regulatory system, which has been almost entirely focused on creating legal infrastructure and licensing legal, for-profit (cannabis) businesses, needs to focus much more strongly on health warnings that educate people about the real risks.' The new systematic review and meta-analysis analyzed medical information from large, observational studies conducted in Australia, Egypt, Canada, France, Sweden and the US between 2016 and 2023. Those studies did not ask people how they used cannabis — such as via smoking, vaping, dabbing, edibles, tinctures or topicals. (Dabbing involves vaporizing concentrated cannabis and inhaling the vapor.) However, 'based on epidemiological data, it is likely that cannabis was smoked in the vast majority of cases,' Jouanjus said. Smoking tobacco is a well-known cause of heart disease — both the smoke and the chemicals in tobacco damage blood vessels and increase clotting, according to the US Centers for Disease Control and Prevention. Therefore, it is not surprising that smoking, vaping or dabbing cannabis could do the same, Silver said: 'Any of the many ways of inhaling cannabis are going to have risks to the user, and there's also secondhand smoke risks, which are similar to tobacco.' The notion that smoking cannabis is less harmful because it's 'natural' is just wrong, Dr. Beth Cohen, professor of medicine at the University of California, San Francisco, told CNN in a prior interview. 'When you burn something, whether it is tobacco or cannabis, it creates toxic compounds, carcinogens, and particulate matter that are harmful to health,' Cohen said in an email. However, edibles may also play a role in heart disease, according to a May 2025 study. People who consumed edibles laced with tetrahydrocannabinol, or THC, showed signs of early cardiovascular disease similar to tobacco smokers. 'We found that vascular function was reduced by 42% in marijuana smokers and by 56% in THC-edible users compared to nonusers,' Dr. Leila Mohammadi, an assistant researcher in cardiology at the University of California, San Francisco, told CNN in a prior interview. None of the studies included in the new meta-analysis asked users about the potency of THC in the products they consume. Even if they had, that information would be quickly outdated, Silver said. 'The cannabis market is a moving target. It is getting more potent every day,' she said. 'What's being sold to people today in California is 5 to 10 times stronger than what it was in the 1970s. Concentrates can be 99% pure THC. Vapes are over 80% THC. 'A variety of chemically extracted cannabinoids can be almost pure THC, and all of these just have very different effects on people than smoking a joint in the 1970s.' Higher potency weed is contributing to a host of problems, including an increase in addiction — a July 2022 study found consuming high-potency weed was linked to a fourfold increased risk of dependence. In the United States, about 3 in 10 people who use marijuana have cannabis use disorder, the medical term for marijuana addiction, according to the CDC. 'We know that more potent cannabis makes people more likely to become addicted,' Silver said. 'We know that more potent cannabis makes people more likely to develop psychosis, seeing and hearing things that aren't there, or schizophrenia. Habitual users may also suffer from uncontrollable vomiting.' The rise in potency is one reason that the current study may not have captured the full extent of the risk of marijuana for heart disease, Jouanjus said: 'We are afraid that the association might be even stronger than that reported.' While science continues to study the risk, experts say it's time to think twice about the potential harms of cannabis use — especially if heart disease is a concern. 'If I was a 60-year-old person who had some heart disease risk, I would be very cautious about using cannabis,' Silver said. 'I've seen older people who are using cannabis for pain or for sleep, some of whom have significant cardiovascular risk, or who have had strokes or had heart attacks or had angina, and they have no awareness that this may be putting them at greater risk.'
Yahoo
2 days ago
- Health
- Yahoo
Marijuana use dramatically increases risk of dying from heart attacks and stroke, large study finds
Get inspired by a weekly roundup on living well, made simple. Sign up for CNN's Life, But Better newsletter for information and tools designed to improve your well-being. Using marijuana doubles the risk of dying from heart disease, according to a new analysis of pooled medical data involving 200 million people mostly between the ages of 19 and 59. 'What was particularly striking was that the concerned patients hospitalized for these disorders were young (and thus, not likely to have their clinical features due to tobacco smoking) and with no history of cardiovascular disorder or cardiovascular risk factors,' said senior author Émilie Jouanjus, an associate professor of pharmacology at the University of Toulouse, France, in an email. Compared to nonusers, those who used cannabis also had a 29% higher risk for heart attacks and a 20% higher risk for stroke, according to the study published Tuesday in the journal Heart. 'This is one of the largest studies to date on the connection between marijuana and heart disease, and it raises serious questions about the assumption that cannabis imposes little cardiovascular risk,' said pediatrician Dr. Lynn Silver, a clinical professor of epidemiology and biostatistics at University of California, San Francisco. 'Getting this right is critically important because cardiovascular disease is the top cause of death both in the United States and globally,' said Silver, who is also senior adviser at the Public Health Institute, a nonprofit public health organization that analyzes marijuana policy and legalization. Silver is the coauthor of an editorial published with the paper that calls for change in how cannabis is viewed by health professionals, regulatory bodies and the public at large. 'Clinicians need to screen people for cannabis use and educate them about its harms, the same way we do for tobacco, because in some population groups it's being used more widely than tobacco,' she said. 'Our regulatory system, which has been almost entirely focused on creating legal infrastructure and licensing legal, for-profit (cannabis) businesses, needs to focus much more strongly on health warnings that educate people about the real risks.' The new systematic review and meta-analysis analyzed medical information from large, observational studies conducted in Australia, Egypt, Canada, France, Sweden and the US between 2016 and 2023. Those studies did not ask people how they used cannabis — such as via smoking, vaping, dabbing, edibles, tinctures or topicals. (Dabbing involves vaporizing concentrated cannabis and inhaling the vapor.) However, 'based on epidemiological data, it is likely that cannabis was smoked in the vast majority of cases,' Jouanjus said. Smoking tobacco is a well-known cause of heart disease — both the smoke and the chemicals in tobacco damage blood vessels and increase clotting, according to the US Centers for Disease Control and Prevention. Therefore, it is not surprising that smoking, vaping or dabbing cannabis could do the same, Silver said: 'Any of the many ways of inhaling cannabis are going to have risks to the user, and there's also secondhand smoke risks, which are similar to tobacco.' The notion that smoking cannabis is less harmful because it's 'natural' is just wrong, Dr. Beth Cohen, professor of medicine at the University of California, San Francisco, told CNN in a prior interview. 'When you burn something, whether it is tobacco or cannabis, it creates toxic compounds, carcinogens, and particulate matter that are harmful to health,' Cohen said in an email. However, edibles may also play a role in heart disease, according to a May 2025 study. People who consumed edibles laced with tetrahydrocannabinol, or THC, showed signs of early cardiovascular disease similar to tobacco smokers. 'We found that vascular function was reduced by 42% in marijuana smokers and by 56% in THC-edible users compared to nonusers,' Dr. Leila Mohammadi, an assistant researcher in cardiology at the University of California, San Francisco, told CNN in a prior interview. None of the studies included in the new meta-analysis asked users about the potency of THC in the products they consume. Even if they had, that information would be quickly outdated, Silver said. 'The cannabis market is a moving target. It is getting more potent every day,' she said. 'What's being sold to people today in California is 5 to 10 times stronger than what it was in the 1970s. Concentrates can be 99% pure THC. Vapes are over 80% THC. 'A variety of chemically extracted cannabinoids can be almost pure THC, and all of these just have very different effects on people than smoking a joint in the 1970s.' Higher potency weed is contributing to a host of problems, including an increase in addiction — a July 2022 study found consuming high-potency weed was linked to a fourfold increased risk of dependence. In the United States, about 3 in 10 people who use marijuana have cannabis use disorder, the medical term for marijuana addiction, according to the CDC. 'We know that more potent cannabis makes people more likely to become addicted,' Silver said. 'We know that more potent cannabis makes people more likely to develop psychosis, seeing and hearing things that aren't there, or schizophrenia. Habitual users may also suffer from uncontrollable vomiting.' The rise in potency is one reason that the current study may not have captured the full extent of the risk of marijuana for heart disease, Jouanjus said: 'We are afraid that the association might be even stronger than that reported.' While science continues to study the risk, experts say it's time to think twice about the potential harms of cannabis use — especially if heart disease is a concern. 'If I was a 60-year-old person who had some heart disease risk, I would be very cautious about using cannabis,' Silver said. 'I've seen older people who are using cannabis for pain or for sleep, some of whom have significant cardiovascular risk, or who have had strokes or had heart attacks or had angina, and they have no awareness that this may be putting them at greater risk.'
Yahoo
13-06-2025
- Health
- Yahoo
Foodborne illnesses increase during the summer. A doctor explains how to keep safe
Get inspired by a weekly roundup on living well, made simple. Sign up for CNN's Life, But Better newsletter for information and tools designed to improve your well-being. As a salmonella outbreak linked to eggs has sickened 79 people across seven states as of June 5, a California-based company has recalled 1.7 million dozen eggs because of potential contamination, according to the US Food and Drug Administration. This rash of illnesses follows a separate outbreak of salmonella infections tied to recalled cucumbers and the US Department of Agriculture's Food Safety and Inspection Service issuing a public health alert for raw ground beef products that could be contaminated with E. coli. As summer approaches, I wanted to understand more about these foodborne infections. What are common causes and symptoms? What are possible consequences of salmonella and E. coli infections? Why are foodborne infections more common in the summer, and what are food safety practices that everyone should follow? To help me with these questions, I spoke with CNN wellness expert Dr. Leana Wen. Wen is an emergency physician and adjunct clinical associate professor at George Washington University. She previously served as health commissioner of Baltimore, where her responsibilities included overseeing food safety. CNN: What are the most common causes of foodborne infections? What symptoms do people experience? Dr. Leana Wen: Foodborne infections are caused by pathogens, including viruses, bacteria and parasites. Norovirus is the leading cause of foodborne illness in the United States. The virus is implicated in about half of all food-related illnesses, according to the US Centers for Disease Control and Prevention. The pathogen can spread through contaminated food and drink or from person to person when someone touches objects that have been handled by an infected individual and then touches their mouth, or through sharing cups, bowls and utensils. A number of bacteria can also cause foodborne illness. Infections can occur from eating raw or undercooked food. Other illnesses occur due to bacterial contamination in food. Common bacteria implicated in foodborne illness include campylobacter, listeria, salmonella and E. coli. Symptoms of foodborne infections include nausea, vomiting, diarrhea and abdominal cramping. Depending on the cause and on the health of the individual, other symptoms may develop such as fevers, bloody diarrhea and dehydration that worsens underlying health problems. CNN: What are possible consequences of salmonella and E. coli infections? How are they treated? Wen: Salmonella most often spreads to people through contaminated food. While most people who fall ill recover quickly with no long-term consequences, some can become very ill. In the current outbreak involving the California-based egg distributor, 21 people have been hospitalized out of the 79 people sickened, according to the CDC. The key to treatment is hydration. Individuals with diarrhea should keep up fluid intake to prevent dehydration. Those who are vomiting and unable to keep fluids down may need to take anti-nausea medications. Most people will get better without using antibiotics, but they may be needed for individuals at risk of severe illness. E. coli lives in the intestines of humans and many animals. A specific type of E. coli is known to cause a serious infection. This strain, called O157:H7, produces a toxin that can damage the intestinal wall and lead to bloody diarrhea. This is the strain implicated in the recent ground beef recall. The specific danger of O157:H7 is that some people who fall ill from it could develop a complication called hemolytic uremic syndrome, or HUS. This syndrome can lead to permanent health problems such as kidney failure, and in some cases, it is fatal. Individuals who develop an O157:H7 infection should also drink plenty of fluids to prevent dehydration from diarrhea. Antibiotics are specifically not given for these infections because they may increase the risk of developing HUS. Most foodborne infections can be treated at home. Reasons to contact your doctor include inability to keep down fluids, persistent diarrhea over three days, high fevers and bloody stools. Babies, older people and individuals with chronic medical conditions should have a lower threshold for seeking help. CNN: Why are foodborne infections more common in the summer? Wen: The risk of foodborne illness is higher during summer months because bacteria grow more quickly in warmer weather. In addition, people are more likely to have barbecues and outdoor events that involve food. Inadequate preparation or leaving out food for too long can lead to foodborne illnesses. CNN: What are food safety practices that everyone should follow? Wen: It's important to abide by recall notices. If you have purchased a product that is now recalled, do not consume it. Follow other instructions as directed by health authorities. Keep an eye on not only federal advisories but your local health department, which will inform you of possible foodborne illnesses associated with local stores and restaurants. Follow best practices in food preparation. That includes washing produce such as vegetables and fruits, even if they end up getting peeled. Make sure to cook meat and fish to the recommended temperature. Be aware of what utensils and plates you are using with raw meat and fish, and don't use them for other food items. Remember that bacteria multiply quickly at room temperature. Two hours is the limit for leaving food out before throwing it away or storing it in a refrigerator or freezer. If you are outdoors and the ambient temperature is very warm, reduce the limit to one hour. It's also a good idea to avoid unpasteurized or 'raw' milk and uncooked eggs. Of course, be sure to wash your hands often and well with soap and water. People who have diarrhea, vomiting and stomach cramps should not prepare food. Those most vulnerable to severe illness, including older adults, babies, and those who are pregnant or have serious underlying conditions, should be especially careful of foodborne illness as they are of other infections.
Yahoo
12-06-2025
- Health
- Yahoo
PFAS exposure before birth could put your teen at risk for high blood pressure, study finds
Get inspired by a weekly roundup on living well, made simple. Sign up for CNN's Life, But Better newsletter for information and tools designed to improve your well-being. Prenatal exposure to a class of dangerous, widely used chemicals could be linked to your child having high blood pressure as a teen, according to a new study. Perfluoroalkyl and polyfluoroalkyl substances, or PFAS — sometimes called 'forever chemicals' because they don't fully break down in the environment — are a class of about 15,000 human-made chemicals linked to cancers, endocrine-related conditions and developmental problems in children. New data shows the synthetic compounds could also be linked to a teen's risk of developing cardiovascular disease later in life, according to the study published Thursday in the Journal of the American Heart Association. Researchers looked at data from 1,094 children over an average of 12 years. The study team compared measurements of eight types of PFAS chemicals in maternal plasma samples 24 to 72 hours after birth and the children's blood pressure from medical records, according to the study. The kids who were exposed to higher levels of PFAS chemicals in utero were more likely to have higher blood pressure in childhood and adolescence, the research found. The connection was particularly strong in adolescents, male children and Black children, said senior study author Dr. Mingyu Zhang, assistant professor of medicine at Harvard Medical School and Beth Israel Deaconess Medical Center. The study is observational, meaning that while it shows associations, it cannot prove that PFAS exposure is the cause of the elevated blood pressure, Zhang said. While researchers did adjust for other factors that could be at play, there could be other elements driving the connection between PFAS and blood pressure, he added. That said, the results are strong because this study is one of the largest and most diverse while also using rigorous methods, said Dr. Carmen Marsit, Rollins Distinguished Professor of Research at Emory University's Rollins School of Public Health in Atlanta. He was not involved in the research. The topic is important to investigate because if a child has high blood pressure, they are more likely to also have higher blood pressure later on, Zhang said. And that is a risk factor for cardiovascular disease, the No. 1 cause of death in the United States. The largest effects were shown in adolescents who were exposed to a mixture of different PFAS chemicals during pregnancy compared with those who were not, which implies that there may be a synergistic impact on cardiometabolic health, Marsit said. 'Most children will be exposed to multiple different PFAS chemicals, so this is worrisome,' he said. The fact that adolescence is the age when prenatal exposure to PFAS is most linked with higher blood pressure suggests that some of the PFAS chemicals could take a long period of time to show their impacts, Marsit said. A long latency of the effects would mean that people don't just need to worry about reducing exposures, but interventions also need to be developed to prevent the health outcomes in people who were exposed earlier, he added. Not only are PFAS forever chemicals –– they also are everywhere chemicals. Data from the National Health and Nutrition Examination Survey shows that this class of chemicals can be found in nearly every person in the United States, Marsit said in a previous CNN story. There are things you can do to reduce your exposure, however, he added. Major sources of exposure include food, water, and waterproof or stain-resistant items, Marsit said. Helpful steps include drinking filtered water –– using filters like those listed by the Environmental Working Group –– out of metal or glass containers, he said. Plastics contain PFAS and other toxic chemicals, Marsit said. A focus on fresh food can also help, as packaging for foods are often coated in PFAS chemicals, he added. And avoid using nonstick cookware, opting instead for metal, cast-iron or ceramic pots and pans, he said. Dusting, vacuuming, and washing your hands before eating or drinking can also reduce PFAS exposure, Marsit said. Healthy lifestyle choices can reduce the risk of high blood pressure for children who have been exposed to PFAS, Zhang said. 'These include maintaining a healthy weight, eating a balanced diet, reducing salt intake, and encouraging physical activity,' he added. But ultimately, an individual cannot solve PFAS exposure alone, Zhang said. 'We also need policy-level actions to limit and phase out PFAS use in products and industry, and to strengthen monitoring and regulation of PFAS in water systems,' he added.
