
High Intensity Interval Training (HIIT) can reverse heart ageing by 50%, even in middle aged people
Think you are too old to halt heart ageing? Think again. You can, in fact, turn back the clock on your heart at the age of 50, thanks to
High Intensity Interval Training
, or HIIT, that is considered an excellent workout for heart health. Here's how...
Understanding HIIT first
High Intensity Interval Training (HIIT) is a part cardio based workout style, where you alternate short bursts of intense exercise with periods of rest or lower-intensity movement. For example, you might sprint for 30 seconds, then walk for a minute (but not stop) and repeat this cycle several times. HIIT is a fairly simple exercise and can be done with cycling, running bodyweight exercises, or even swimming.
How is it good for your heart?
HIIT makes your heart work harder during the intense intervals, then lets it relax and recover during the rest periods. This 'stress and rest' pattern strengthens the heart muscle, improves blood flow, and helps your heart become more efficient, no matter what your age is. Here are some more benefits of HIIT...
Improves heart flexibility
As we age, our heart muscles and blood vessels can become stiff. HIIT helps make them more flexible, allowing blood to flow more easily. This flexibility is a key sign of a younger, healthier heart.
Efficient oxygen use
HIIT trains your heart and lungs to use oxygen more efficiently. This means your body can deliver more oxygen to your muscles and organs.
Reduces your risk factors
Regular HIIT lowers blood pressure, reduces bad cholesterol, and helps control blood sugar. All of these are major risk factors for heart disease and ageing.
Can HIIT it reduce heart age by 50%?
A groundbreaking study found that people who did HIIT workouts for several months saw their heart's 'biological age' drop by up to 50%. This means their hearts functioned as if they were decades younger, no matter what their current age was. The results were seen in both men and women, and even in people who hadn't exercised much before.
How to get started
You don't need fancy equipment or a gym membership to try HIIT. Here's a simple routine you can do anywhere:
Warm up for 5 minutes (walking, light jogging).
Sprint or go all-out for 30 seconds.
Recover by walking or slow jogging for 1 minute.
Repeat the sprint/recovery cycle 6-8 times.
Cool down for 5 minutes.
Start with just 1-2 sessions per week and build up as you get fitter.
Is HIIT Safe for everyone?
HIIT is generally safe for most people, but if you have heart problems or haven't exercised in a while, check with your doctor first. Any exercise comes with its risk factors, and should be vetted by a doctor first.
Masterclass for Students. Upskill Young Ones Today!– Join Now

Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles


NDTV
3 days ago
- NDTV
Japanese Walking Technique Is The Latest Health Trend For All The Right Reasons: 10 Notable Health Benefits
The Japanese Walking Technique, specifically referred to as Interval Walking Training (IWT), is a scientifically-backed fitness method developed by Japanese researchers to improve cardiovascular and metabolic health. It involves alternating short bursts of fast walking (at about 70–85% of your maximum effort) for around 3 minutes, followed by 3 minutes of slow, relaxed walking, repeated in cycles for about 30 minutes total. This on-off style of walking is highly effective for boosting stamina, burning calories, and improving heart and lung function. Unlike regular walking, IWT introduces intensity variation that challenges the body to adapt and recover repeatedly, making it a low-impact yet powerful workout that is particularly suitable for all age groups, including seniors. In this article, we share a list of benefits you can achieve from this walking technique. 10 Notable health benefits of the Japanese walking technique (IWT) 1. Improves cardiovascular health IWT strengthens the heart by increasing and lowering heart rate through intervals, much like HIIT (High-Intensity Interval Training). This helps lower blood pressure and improves overall heart efficiency, reducing the risk of heart disease. 2. Increases endurance and stamina By regularly switching between fast and slow walking, IWT trains your body to recover quickly and sustain longer periods of physical activity. Over time, this boosts aerobic capacity and overall energy levels. 3. Enhances metabolic function IWT can significantly improve insulin sensitivity and glucose metabolism. It helps manage blood sugar levels effectively, making it beneficial for people with pre-diabetes or type 2 diabetes. 4. Promotes fat loss The burst of fast-paced walking increases calorie burn, while the recovery phase keeps the metabolism elevated. Studies in Japan have shown that participants practicing IWT lost more body fat compared to those doing only moderate-paced walking. 5. Builds lower body strength The fast walking intervals engage muscles in the legs, glutes, and hips more intensively. This repeated engagement strengthens the lower body, improves joint function, and enhances balance. 6. Supports mental well-being The physical exertion followed by short recovery gives a sense of rhythm and achievement. This has been linked to reduced symptoms of anxiety and depression and boosts in mood and cognitive sharpness. 7. Reduces risk of age-related decline IWT has shown to increase physical performance in older adults. It improves walking speed, reaction time, and balance, reducing the risk of falls and promoting healthy aging. 8. Lowers risk of lifestyle diseases Japanese studies have associated IWT with lower incidence of hypertension, obesity, and high cholesterol. By improving multiple health markers, IWT acts as a preventive tool for chronic illnesses. 9. Improves lung capacity The repeated effort required during fast intervals enhances oxygen intake and respiratory strength. This can benefit people with mild respiratory concerns and those looking to improve VO2 max (a measure of aerobic fitness). 10. Time-efficient and sustainable Unlike intense gym workouts, IWT requires no equipment and can be done in parks or sidewalks. With just 30 minutes a day, 3–4 times a week, it delivers measurable results without being too demanding, making it highly sustainable in the long run. It's absolutely healthy and is even used in clinical settings in Japan to treat and prevent lifestyle-related diseases. Disclaimer: This content including advice provides generic information only. It is in no way a substitute for a qualified medical opinion. Always consult a specialist or your own doctor for more information. NDTV does not claim responsibility for this information.


India.com
5 days ago
- India.com
7 Ways Moms Can Stay Fit Without Leaving Home
Anaika Sohal Jun 16, 2025 Moms should follow 15–30 minute workout videos like HIIT, yoga, or Pilates to stay active with any equipment. Whenever there is kid playtime involve them and turn it into exercise, dance together or play movement-based games. For weight gain, be creative, use water bottles, backpacks, or even bags of rice for resistance training. Use stairs for a quick cardio session, just 10–15 minutes of stair climbing can be highly effective. Moms should set aside time during nap time or early morning for a short workout session. Turn cooking and cleaning into mini-workout by adding lunges, squats, or stretching. Stay motivated by joining fitness groups for support. This web story is meant for informational purposes only and must not be considered a substitute for advice provided by qualified medical professionals Read Next Story


Time of India
10-06-2025
- Time of India
Walking made Japaneasy
Japanese walking Professor Hiroshi Nose Shinshu University A fitness trend known as Japanese walking is capturing attention online, promising major health benefits with minimal equipment and on interval-style bursts of fast and slow walking, Japanese walking was developed byand Associate Professor Shizue Masuki atin Matsumoto, Japan. It involves alternating between three minutes of walking at a higher intensity and three minutes at a lower intensity, repeated for at least 30 minutes, four times per higher-intensity walking should be done at a level that is 'somewhat hard'. At this level, it is still possible to talk, but holding a full conversation would be more lower-intensity walking should be done at a level that is 'light'. At this level, talking should be comfortable, though a little more laboured than an effortless walking has been likened to high-intensity interval training or Hiit, and has been referred to as 'high-intensity walking', although it is less taxing than true Hiit and is performed at lower is also easy to perform and requires only a stopwatch and space for walking. It requires little planning and is less time-consuming than other walking targets, such as achieving 10,000 steps a day. This makes it suitable for most walking offers significant health benefits. A 2007 study from Japan compared this method to lower-intensity continuous walking, with a goal of achieving 8,000 steps per day. Participants who followed the Japanese walking approach experienced notable reductions in body weight. Blood pressure also dropped – more so than in those following the lower-intensity continuous walking strength and physical fitness were also measured in this study. Both improved to a greater extent in those following the Japanese walking programme, compared to those completing moderate-intensity continuous walking.A longer-term study also found that Japanese walking protects against the reductions in strength and fitness that happen with improvements in health would also suggest that Japanese walking can help people live longer, though this has not yet been directly are a few things to consider with this new walking trend. In the 2007 study, around 22% of people did not complete the Japanese walking programme. For the lower intensity programme, with a target of 8,000 steps per day, around 17% did not complete it. This means that Japanese walking may not be suitable for everyone, and it might not be any easier or more attractive than simple step-based a certain number of steps per day has also been shown to help people live longer. For those aged 60 and older, the target should be around 6,000 to 8,000 steps a day and 8,000 to 10,000 for those aged under 60. Similar evidence does not appear to exist for Japanese walking… is this walking trend really the be-all and end-all? Or does it matter less about what exercise you do and more about how often and how hard you do it? The answer is likely to be the tells us that people who regularly perform more bouts of moderate to vigorous physical activity live longer, regardless of how long each bout means that we should focus on ensuring we perform regular moderate to vigorous physical activity and make it habitual. If that activity happens to be Japanese walking, then it's a worthwhile choice.