Study debunks 5G health conspiracy theory (again)
Conspiracy theories about cell phone towers and wireless communication have existed as long as the technologies themselves. But in an age of rampant disinformation, objectively false claims about these subjects are more widespread than ever, and increasingly difficult to combat. Take 5G cellular service, for example. The more advanced network's unfortunately timed 2019 rollout made it the focal point in many off-the-wall COVID-19 conspiracies. While some of the more ludicrous claims involved 5G microchip implants hidden in fake vaccines, others fell back on a more familiar trope—that 5G frequencies are actively harmful to our health.
Studies have repeatedly debunked these claims in the past, but researchers at Germany's Constructor University recently decided to provide more evidence that our smartphones aren't secretly poisoning us. What's more, their study published in the May issue of the journal PNAS Nexus showcases just how innocuous 5G's electromagnetic fields really are.
Cellular networks operate and transmit information within predetermined frequency ranges. All 5G networks currently operate under 6 gigahertz (GHz), but that will expand to encompass 24.3 to 27.5 GHz and 39.5 to 43.3 GHz ranges in the coming years. While very strong electromagnetic fields can potentially cause physiological damage, the frequencies used in 5G can't penetrate the body beyond a few millimeters of skin. Despite this, the team from this study conducted a fully blinded experiment that exposed human cells to not only 5G frequency ranges, but also far more powerful electromagnetic fields.
The team focused on two kinds of human skin cells: fibroblasts and keratinocytes. These make up connective tissue and the majority of the epidermis, respectively. Over a series of tests, the researchers exposed the sample cells to 27 and 40.5 GHz frequencies at multiple strengths for both two and 48 hour intervals. According to the authors, this is the first-known study to use methods including whole-genome RNA sequencing and methylation array for analyzing both the genetic and epigenetic effects of 5G frequencies on human cells.
The results were about as predictable as could be expected. Even at 10 times the recommended exposure limits, the team did not find a single change to gene expression or methylation profiles beyond what can be expected from chance. The authors also made sure to note that although a handful of previous studies offer contrary claims, those experiments did not control for temperature. Because of this, it's extremely likely that any of their recorded 'effects' from 5G exposure were the results of heat alone.
'[O]n the one hand [our results are] very well in line with biophysical facts: at the frequencies tested here, the quantum energies are far too low to have photochemical or even ionizing effects,' the authors wrote in their conclusion. 'On the other hand, it shows how important it is to precisely control, document and, if necessary, compensate for the temperature effects caused by the exposure.'
The researchers hope their latest findings will 'close this debate' on 5G, particularly any claims to 'possible nonthermal biological effects of exposure.' Given the state of global misinformation, however, the chance of these and similar conspiracy theories disappearing for good is about as unlikely as a 5G microchip lurking inside your next COVID-19 booster shot.

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


Chicago Tribune
4 hours ago
- Chicago Tribune
US measles count now tops 1,200 cases, and Iowa announces an outbreak
The U.S. logged fewer than 20 measles cases this week, though Iowa announced the state's first outbreak Thursday and Georgia confirmed its second Wednesday. There have been 1,214 confirmed measles cases this year, the Centers for Disease Control and Prevention said Friday. Health officials in Texas, where the nation's biggest outbreak raged during the late winter and spring, confirmed six cases in the last week. There are three other major outbreaks in North America. The longest, in Ontario, Canada, has resulted in 2,179 cases from mid-October through June 17. The province logged its first death June 5 in a baby who got congenital measles but also had other preexisting conditions. Another outbreak in Alberta, Canada, has sickened 996 as of Thursday. And the Mexican state of Chihuahua had 2,335 measles cases and four deaths as of Friday, according to data from the state health ministry. Other U.S. states with active outbreaks — which the CDC defines as three or more related cases — include Arizona, Colorado, Illinois, Kansas, Montana, New Mexico, North Dakota and Oklahoma. In the U.S., two elementary school-aged children in the epicenter in West Texas and an adult in New Mexico have died of measles this year. All were unvaccinated. Measles vaccination rates drop after COVID-19 pandemic in counties across the USMeasles is caused by a highly contagious virus that's airborne and spreads easily when an infected person breathes, sneezes or coughs. It is preventable through vaccines and has been considered eliminated from the U.S. since 2000. There are a total of 750 cases across 35 counties, most of them in West Texas, state health officials said Tuesday. Throughout the outbreak, 97 people have been hospitalized. State health officials estimated less than 1% of cases — fewer than 10 — are actively infectious. Fifty-five percent of Texas' cases are in Gaines County, where the virus started spreading in a close-knit, undervaccinated Mennonite community. The county has had 413 cases since late January — just under 2% of its residents. The April 3 death in Texas was an 8-year-old child, according to Health Secretary Robert F. Kennedy Jr. Local health officials said the child did not have underlying health conditions and died of 'what the child's doctor described as measles pulmonary failure.' A unvaccinated child with no underlying conditions died of measles in Texas in late February; Kennedy said the child was 6. New Mexico held steady Friday with a total of 81 cases. Seven people have been hospitalized since the outbreak started. Most of the state's cases are in Lea County. Sandoval County near Albuquerque has six cases, Eddy County has three, Doña Ana County has two. Chaves, Curry and San Juan counties have one each. An unvaccinated adult died of measles-related illness March 6. The person did not seek medical care. Oklahoma added one case Friday for a total of 17 confirmed and three probable cases. The state health department is not releasing which counties have cases. Arizona has four cases in Navajo County. They are linked to a single source, the county health department said June 9. All four were unvaccinated and had a history of recent international travel. Colorado has seen a total of 16 measles cases in 2025, which includes one outbreak of 10 related cases. The outbreak is linked to a Turkish Airlines flight that landed at Denver International Airport in mid-May. Four of the people were on the flight with the first case — an out-of-state traveler not included in the state count — while five got measles from exposure in the airport and one elsewhere. Health officials are also tracking an unrelated case in a Boulder County resident. The person was fully vaccinated but had 'recently traveled to Europe, where there are a large number of measles cases,' the state health department said. Other counties that have seen measles this year include Archuleta and Pueblo. Georgia has an outbreak of three cases in metro Atlanta, with the most recent infection confirmed Wednesday. The state has confirmed six total cases in 2025. The remaining three are part of an unrelated outbreak from January. Illinois health officials confirmed a four-case outbreak on May 5 in the far southern part of the state. It grew to eight cases as of June 6, but no new cases were reported in the following weeks, according to the Illinois Department of Public Health. The state's other two cases so far this year were in Cook County, and are unrelated to the southern Illinois outbreak. Illinois unveils online tool showing measles vaccination rates by schoolIowa has had six total measles cases in 2025. Four are part of an outbreak in eastern Johnson County, among members of the same household. County health officials said the people are isolating at home, so they don't expect additional spread. Kansas has a total of 79 cases across 11 counties in the southwestern part of the state, with three hospitalizations. All but three of the cases are connected, and most are in Gray County. Montana had 22 measles cases as of Friday. Fourteen were in Gallatin County, which is where the first cases showed up — Montana's first in 35 years. Flathead and Yellowstone counties had two cases each, and Hill County had four cases. There are outbreaks in neighboring North Dakota and the Canadian provinces of Alberta, British Columbia and Saskatchewan. North Dakota, which hadn't seen measles since 2011, was up to 34 cases as of June 6, but has held steady since. Two of the people have been hospitalized. All of the people with confirmed cases were not vaccinated. There were 16 cases in Williams County in western North Dakota on the Montana border. On the eastern side of the state, there were 10 cases in Grand Forks County and seven cases in Cass County. Burke County, in northwest North Dakota on the border of Saskatchewan, Canada, had one case. Measles cases also have been reported this year in Alaska, Arkansas, California, District of Columbia, Florida, Hawaii, Indiana, Kentucky, Louisiana, Maryland, Michigan, Minnesota, Missouri, Nebraska, New Jersey, New York, Rhode Island, South Dakota, Vermont, Virginia and Washington. Health officials declared earlier outbreaks in Indiana, Michigan, Ohio and Pennsylvania over after six weeks of no new cases. Tennessee's outbreak also appears to be over. Cases and outbreaks in the U.S. are frequently traced to someone who caught the disease abroad. The CDC said in May that more than twice as many measles have come from outside of the U.S. compared to May of last year. Most of those are in unvaccinated Americans returning home. In 2019, the U.S. saw 1,274 cases and almost lost its status of having eliminated measles. The best way to avoid measles is to get the measles, mumps and rubella vaccine. The first shot is recommended for children between 12 and 15 months old and the second between 4 and 6 years old. Getting another MMR shot as an adult is harmless if there are concerns about waning immunity, the CDC says. People who have documentation of receiving a live measles vaccine in the 1960s don't need to be revaccinated, but people who were immunized before 1968 with an ineffective vaccine made from 'killed' virus should be revaccinated with at least one dose, the agency said. People who have documentation that they had measles are immune and those born before 1957 generally don't need the shots because so many children got measles back then that they have 'presumptive immunity.' Measles has a harder time spreading through communities with high vaccination rates — above 95% — due to 'herd immunity.' But childhood vaccination rates have declined nationwide since the pandemic and more parents are claiming religious or personal conscience waivers to exempt their kids from required shots. Measles first infects the respiratory tract, then spreads throughout the body, causing a high fever, runny nose, cough, red, watery eyes and a rash. The rash generally appears three to five days after the first symptoms, beginning as flat red spots on the face and then spreading downward to the neck, trunk, arms, legs and feet. When the rash appears, the fever may spike over 104 degrees Fahrenheit, according to the CDC. Most kids will recover from measles, but infection can lead to dangerous complications such as pneumonia, blindness, brain swelling and death. There's no specific treatment for measles, so doctors generally try to alleviate symptoms, prevent complications and keep patients comfortable.

Epoch Times
6 hours ago
- Epoch Times
How Women Can Prevent Hair Loss by Nourishing the Liver and Kidneys
Hair health reflects overall physical well-being. Women often experience hair loss due to various causes, including postpartum recovery, menopause, alopecia areata, or scalp issues such as itchiness and dandruff, exacerbated by summer heat. Traditional Chinese medicine (TCM) offers a holistic approach, emphasizing a blend of targeted dietary supplements, meticulous scalp care, and proper hair-washing techniques to reduce hair loss effectively. Dr. Chen Hsin-hung, a TCM practitioner at Hanyitang Chinese Medicine clinics in Taiwan, shared a case of hair loss. A woman in her 20s developed alopecia areata (patchy baldness) after receiving the COVID-19 vaccine, which left her deeply distressed when her hair almost entirely fell out. Through 6 to 8 months of TCM treatment, she regrew dark, vibrant hair. Exploring Hair Loss Causes With TCM From the perspective of TCM, the liver and kidneys are closely related to hair health as they play a vital role in the internal organ-centered energy system.
Yahoo
9 hours ago
- Yahoo
Lumen Technologies: A Neglected Yet Golden Investment in Infrastructure with Edge Computing Benefits
Introduction Lumen is a special case, a convincing deservice opportunity that is getting out of the crash, trading at bumps. It is led by management quality, strategic transformation, and the undervalued private infrastructure assets. The fiber network, which encompasses a total distance of 450,000 miles, is an abundant and growing digital infrastructure viewed positively in the era of AI and edge computing. The company's strategic plan focuses on the expansion of Lumen's edge computing, where its distributed fiber network makes the company unique for low-latency applications addressing a $12 billion edge computing market. In addition, the company earns revenue with the help of its 5G infrastructure, which is the only service provider in regional markets, and at the same time, it creates a stable income stream. Furthermore, the usage of direct cloud connection and hybrid infrastructure services by enterprise digital transformation creates extra demand for those services. The increased AI infrastructural necessity resonates in the additional value of Lumen's fiber network for data center interconnection and AI workload support. Warning! GuruFocus has detected 7 Warning Signs with LUMN. Growing the Fiber Network Infrastructure The fiber optic network of Lumen is the primary engine of this company generating profit by the global serving of the 450,000 route miles. This fiber, as the primary related technology, depends on it to deliver high speed, low latency services that are primordial for the new digital applications. The company's decisive move in respect of the fiber network, especially in demography and enterprise development, ensures the firm with a great strategic advantage over copper-based legacy networks. Besides, the fiber network can now deliver ultra-reliable, low latency applications in addition to just basic connecting network services. Among the numerous advantages of fiber, only fiber can be used in signal quality, bandwidth capacity, and electromagnetic interference resistance to be avant-garde technologies. It is the preferred medium of backhaul 5G, cloud, and live data analytics applications. Lumen's fiber infrastructure investments also support network slicing capabilities, allowing the company to partition network resources for specific customer requirements or service types. This technological flexibility enables customized service offerings that can command premium pricing while optimizing network utilization across diverse customer segments. Edge Computing Platform Development The development of edge computing platform at Lumen is a technological effort, which changes things dramatically in the field of networking and cloud computing at the same time. Besides, by bringing computing resources to be closer to the end users and data sources, Lumen's edge infrastructure not only cuts the latency but it also improves the application's performance and provides new categories of real-time applications. Lumen's edge computing nodes are strategically located within its fiber network footprint, creating a distributed computing architecture that can support latency-sensitive applications such as autonomous vehicles, industrial IoT, augmented reality, and real-time analytics. This edge-to-cloud continuum provides customers with flexible deployment options that optimize performance and cost characteristics based on specific application requirements. The platform's integration with major cloud providers through direct connectivity and peering arrangements creates hybrid and multi-cloud capabilities that address enterprise requirements for workload portability and vendor diversification. This technological approach enables Lumen to participate in the growing edge computing market while leveraging its existing network infrastructure investments. Software-Defined Networking (SDN) Implementation Lumen's implementation of software-defined networking technologies transforms its traditional network infrastructure into a programmable, agile platform capable of rapid service provisioning and dynamic resource allocation. SDN capabilities enable automated network management, real-time traffic optimization, and on-demand bandwidth allocation that significantly improves operational efficiency and customer experience. The SDN architecture is a platform that supports network function virtualization (NFV). This means Lumen can deploy network services as software applications instead of hardware appliances. This kind of approach is not only entailed by the lower capitalization of expenses, but it is also characterized by the quick service deployment and the service customization for the enterprise customers. Through software-defined networking, network-as-a-service offerings can also be made available, which will enable customers to provision services on a self-service basis while subscribing to a usage-based pricing model. These features are of utmost importance to customers that have changing bandwidth requirements or are trying to avoid fixed infrastructure costs. Conventional Competitors Lumen's most direct rivals are the traditional telecommunications carriers such as Verizon, AT&T, and Comcast, who have not only equivalent network infrastructures but also relationships with enterprise customers. These market players are worthy of competition with their strong financial means, large fiber subscriber networks, and long-term customers, thus triggering a tough competitive environment for Lumen in the field of core connectivities. The most outstanding asset of Verizon is its being the best in wireless network leadership and enterprise mobility solutions together with a strong fiber infrastructure that supports both wireless backhaul and direct enterprise connectivity. AT&T is putting its massive customer base to use since it is providing integrated wireless-wireline options, which means the company has the chance to address the integration broadband communication needs of customers. Comcast's cable infrastructure and business services division compete directly with Lumen in metropolitan markets. Lumen's Response Strategy: Lumen, on the other hand, considers this competition as a possibility to find a difference through technology in the network reach and edge computing capabilities. The company's vast fiber footprint, which is most visible in secondary markets and rural areas, gives geographic coverage advantages overlooked often by bigger firms. Lumen's priority to fast, low-latency connectivity and edge computing services offers such technical differentiation that is not seen in traditional connectivity products. However, Lumen's success in this competitive area is a mixture of good and bad. While the company secures strong positions in specific geographic markets and customer segments, its overall market share is being clobbered by large companies taking advantage of the superior financial resources and wider service portfolios. The company's enterprise customer base cushions the blow to some degree, whereas the pressure from competitors on the pricing and the service mix also persistently challenges its growth potential. Cloud Service Provider Competition Amazon Web Services, Microsoft Azure, and Google Cloud Platform are cloud service providers that have turned on the player because of the infrastructure expansion and direct connectivity services they offer. These super cloud platforms have huge amounts of financial resources and they are able to exploit their worldwide data centers to give networking and cloud services in an integrated way. AWS's Direct Connect, Microsoft's ExpressRoute, and Google's Dedicated Interconnect services are the products that compete directly with Lumen's cloud connectivity offerings. These companies have the capability to package the networking services together with the cloud computing resources so that they can present the integrated solutions which seem to the customer more affordable than the networking and cloud services independently. Lumen's Response Strategy: Lumen's strategy was to position itself as a neutral connectivity provider, meaning that it would not become a competitor of the aforementioned major cloud platforms, but rather work with them instead. The company's multi-cloud connectivity sets apart Lumen's clients from the clouds and therefore by using one network relationship they are able to access multiple cloud providers. This partnership model has been successful to a large extent, as shown in the area of Lumen's interconnectivity of relational with renowned cloud providers. The company's edge computing projects also go side by side with hyperscale cloud services because they concentrate on the applications that take benefits from the distributed computing resources which are available only by low latency. Lumen's Replacement Cost: Physical Infrastructure Layer In any telecommunications network, the foundation is the physical infrastructure, which comprises actual cables, conduits, and pathway rights. For Lumen's fiber network, specifically, you will require the securing of rights-of-way for traversal of hundreds of thousands of miles. This is also the place where the historical side comes to play. To note, the majority of these rights-of-way have been obtained more than a couple of decades, and some even over a century, ago. Their grants were often made through regulatory frameworks, now non-existent, and no cost of reproduction would be today equivalent. Just think of this: if you were to seek building a transcontinental fiber network from the beginning this time around, you'd extremely likely suffer from issues like environmentalist reviews, urban planning restrictions, property acquisition costs, and regulatory hurdles that were not there when a lot of the original pathway infrastructure was laid. The switch expense for the rights and permits themselves would easily top out at tens of billions of dollars. Fiber Infrastructure Alone These days, it costs roughly $10,000 to $30,000 per mile of installation depending on ground and town vs. country building conditions to set up modern optical fiber cables. The figure would be between $4.5 billion to $13.5 billion just for the fiber installation alone if Lumen laid out 450,000 route miles. But, sincerely, it is actually this part of the physical equation that is the lesser one. Network Equipment and Technology The next topic is undoubtedly more of a technology's standpoint but on the flip side could be also finance's. In a certain way, even the replacement cost would be lesser as the new one is much more powerful and efficient. The fiber optic systems of today can overwhelmingly more data even than those systems which have been running for a decade before. A solitary fiber strand is able to handle multitasking terabits of data today that would have been supported by a mega-corporation's infrastructure before. Nonetheless, you'll still have to get thousands of network nodes, switching equipment, data centers, redundancy systems, and more. Some estimates from the industry indicate that this may add a further $20-30 billion to the replacement cost. The Hidden Value: Network Effects and Interconnection In this case, the reasoning becomes more complicated. You should notice that the base telecommunications network profit is not just from its physical components per se-who will connect to other networks and whom will it get customers from, and operational systems which is Lumen's structured network connects to other carriers-internet service providers-and enterprise customers. The network of Lumen connects to the hundreds of participating Internet service providers, enterprise customers, and carriers. Doing so would mean replicating these interconnection agreements and relationships, which could take numerous years and in some cases may be unfeasible because of the conditions that have to be met initially. You can think of it as if you were to try to recreate an entire town's road infrastructure. One could feasibly build these roads (or at least the majority of them), yet it is another challenge altogether to recreate all those businesses, the inhabitants, and the economic activity that goes through those roads and thus, makes them valuable. Assembling a Realistic Estimate The price tag to produce Lumin's core network infrastructure like as a key player would be easily estimated to reach between $50-80 billion if we are to rely on benchmarks of the industry and consider all these points. This number will be divided among the physical infrastructure, equipment, current costs for rights-of-way acquisition, time for customers, and carrier relationship building. But, being practical, the main takeaway from this analysis on the replacement cost is clear; this is the reason the dominant telecommunications companies trade at marked premiums over their underlying asset value. The entry barriers are really huge, affecting not only funds but also practically and regulatorily. Key Risks Revenue Decline and Customer Attrition Risks Lumen has a hard time bearing the pressure of revenue coming from the legacy service division that is competing with other markets. As more customers opt for newer technologies and competitors provide better prices or bundles than traditional voice and data services, they are still afflicted by the secular challenge. This is the situation they are in because of the fact that the fixed network costs are still more or less the same, thus making the dependency on operational leverage harder, while the revenue decreases. The customer's concentration-risk is one more vulnerability, as the company could suffer heavy financial consequences if important corporations were to leave. Contracts with companies usually span for several years, however, contract switching in the period of renewal affects considerably the company's income volatile, which is hard to be compensated by bringing in new clients in fierce competition. The company's consumer sector is burdened by the issue of cord-cutting trends where Lumen Broadband offers tough competition, alongside government regulatory pressures on pricing. Additionally, Lumen's reliance on rural markets also exposes it to the risk of financial troubles stemming from the agricultural and energy sectors which constitute large chunks of its customer base in specific areas. Technological Obsolescence and Infrastructure Risks The fast-moving technology development in telecommunications introduces the risk of infrastructure obsolescence and stranded asset values. Lumen's vast copper network infrastructure represents a huge investment of several billion which could turn into a loss if fiber and wireless technologies keep on evolving. The question then is whether the transfer of the customers under technology is going to be done by Lumen at the right time without increasing service costs and production costs. Network security is always a concern whenever essential infrastructure is being served by enterprises and government customers. Psychological issues like natural disasters, cyber-attacks, equipment glitches, or human imprudence can induce service outages that will, in turn, translate into customer frustration, regulatory fines, and distortion of image. The redundancy of the company's network and their recovery plans are both massive but they still cannot wholly remove the operational risks. Counterproductive cybersecurity actions become a major problem as the whole network system transforms into an attractive target for the state, criminals, and hacktivists. The impacts of possible breaches include loss of customer data, disruption of service delivery, regulatory penalties, and customer mistrust. The hacking arena is becoming more sophisticated both in instrumentality and occurrence, hence the call for constant upgrading of security measures and employment of personnel. Guru While the institutional ownership data reflects the different perspectives of two finance managers about Lumen's future. Palestra Capital Management's biggest shareholder Andrew Immerman holds 3,750,000 shares worth $14.70 million and his holding is 0.59% of the total portfolio. At the same time Palestra has shown its tremendous concern regarding the investment, as it has sold a very considerable 66.42% of the stake it held, that is 7.42 million of shares. Such drastic sell-off move conveys the idea that they are losing hope in Lumen's recovery storyline, although Immerman with the average price per buy of $1.79 was obviously the first one to trust the new narrative. On the other hand, John Overdeck of Two Sigma Advisers holds a smaller but more stable position of 7.79 million shares for $30.54 million. The company marginally raised its stake by 3.81%, buying an additional 286,200 shares pointing to confidence about Lumen's opportunities, albeit moderate. The average cost of around $3.90 indicates their high price purchases, Nevertheless, acquisition suggests the sustained belief in Lumen's investment case by them. Valuation Snapshots of Lumen's data reflect a twisted narrative of the organization, as they capture both the financial obstacles and the potential value-moment. The P/E ratio of -12.41 implies that the company is presently not profitable on a net basis, which presents distasteful conditions on the subject of fundamental valuation. The shortfall clearly comes as a result of the huge debt load of Lumen, depreciation costs of the obsolete infrastructure, and costs associated with the restructuring of the company. Notwithstanding, the PEG ratio of 2.74 shines a more multifaceted light on the matter. Although this seems high compared to normal growth stock benchmarks, it should be seen within the context of Lumen's conversion narrative. The PEG computation indicates the situation where even in times of losses, the market will come to realize revenues that are going to be more than sufficient to cover the costs. The metric that looks ahead incorporates the expectations that Lumen is going to move away from traditional phone services to the more profitable edge computing and digital infrastructure lines. The coupling of negative current income and positive PEG ratio gives a quite interesting investment set up. It literally means that in the short-run Lumen is undergoing cash flow challenges but, the marketshope for a turnaround due to the stabilization in the revenues and the growth of the new businees. It, therefore, provides the investors a turnaround situation where the current financial numbers may not do real justice to the company's actual real value creation that will will be seen when the transformation starts to work and the efficiency goes up. Recommendation From the standpoint of valuation, Lumen is at the graveyard lows trading at an EV/EBITDA multiple of about 4x. This obviously shows the legacy business worries while the transformation business gets ignored. The company is cash rich as it produces around $2.3 billion of free cash flow on an annual basis, which it can use both in debt pay-down and the execution of new projects. Moreover, the company's hefty $35 billion debt load, which limits its financial maneuverability, and the legacy revenue outflow accompany Lumen's investment dilemmas. However, some bright signals come from core business stabilization and better edge computing business prospects. The infrastructure of the enterprise, which is the backbone of the company, coupled with the innovative growth factors, and the discounted valuation creates a situation of risk-reward, the variant of which is only for the patient investor, who is ready to endure the short-term execution hazards. This article first appeared on GuruFocus.