BMI has been the benchmark in evaluating health and fitness for many years. The formula is quite simple: weight in kilograms divided by the square of height in meters. This would easily tell if one is underweight, within the healthy weight range, overweight, or obese. But with new research findings, scientists are now questioning its accuracy and usefulness as a total measure of body composition.
The report, published in The Lancet Diabetes & Endocrinology, has sparked a global conversation on rethinking BMI. Supported by more than 50 international medical experts, the report suggests classifying obesity into "clinical" and "pre-clinical" types for better diagnosis and treatment. The shift underscores a growing consensus: BMI alone may not tell the full story of your health.
While BMI is simple to calculate and universally accessible, it is far from perfect. It does not consider muscle mass, bone density, or fat distribution, leading to misleading conclusions in some cases. For example, athletes with a high muscle mass may be considered overweight, whereas individuals with normal BMI might carry unhealthy amounts of visceral fat.
A landmark study in JAMA Network Open studied more than 155,000 postmenopausal women and found that women with a normal BMI but a waist size over 35 inches were more likely to die from heart disease or cancer compared with their counterparts whose waists are smaller. That makes a great case for how BMI can be insufficient and fat distribution must be factored into account.
Not all body fat is equal. Subcutaneous fat, which lies just beneath the skin, is relatively harmless. The real health danger lies in visceral fat—fat that surrounds internal organs. Unlike subcutaneous fat, visceral fat is metabolically active, releasing stress hormones like cortisol and inflammatory substances that raise blood pressure, blood sugar, and cholesterol levels. These effects significantly increase the risk of conditions such as heart disease, type 2 diabetes, and certain cancers.
Since BMI is not the most reliable measure, scientists and doctors have sought other means to measure body composition more accurately.
A simple tape measure can provide valuable insight into your health. Measure your waist at the level of your belly button, ensuring the tape is parallel to the ground. For women, a waist measurement under 35 inches is considered healthy, while for men, the goal is under 40 inches.
This is the ratio of your waist circumference to that of your hips. To calculate it, divide your waist measurement by your hip measurement. According to the National Center for Biotechnology Information, a ratio under 0.8 for women and 0.9 for men is considered healthy.
A newer method that seems to be receiving more attention involves the Body Roundness Index or BRI: height, weight, and girth are placed together to represent a more advanced view of what body composition says. Research presented in JAMA Network Open offers evidence that this BRI predicts mortality risk greater than BMI in some cases- a promising weapon for public health.
Also Read: Using BMI To Classify People As Obese Is Flawed Say Experts
The good news is that visceral fat responds well to lifestyle changes. Here are three evidence-based strategies:
Adopting an eating window of 12 hours—such as from 7 a.m. to 7 p.m.—can significantly reduce visceral fat, according to a study published in Nutrition Research Reviews. This approach not only helps control caloric intake but also reduces late-night snacking, a known risk factor for abdominal obesity.
Excessive alcohol consumption is associated with increased belly fat. A 2017 study published in Public Health Nutrition revealed that alcohol increases the levels of insulin and encourages the storage of fat in the abdominal area. Limiting alcohol to occasional indulgence helps avoid weight gain in this region.
HIIT involves repeated episodes of high-intensity exercise separated by periods of rest. A review in *Sports Medicine* concluded that HIIT is very effective in reducing visceral and total body fat. It can be noted that adding just 20 minutes of HIIT two times a week can make all the difference.
The reliance on BMI as a sole indicator of health is increasingly being challenged. While it remains a convenient screening tool, its limitations necessitate a broader approach that considers factors like fat distribution, waist circumference, and new metrics such as BRI.
In the simplest of words, health is multi-dimensional, and shifting perspectives from considering weight solely to broader measures of body composition will get people a much clearer understanding of where their health risks are so that they can take the action required for a better quality of life. Through adjustment to diet, exercise, or perhaps through innovative metrics like BRI, health is well within reach of the individual.
This dynamic conversation raises the point about personalized health screenings, which helps everyone get more relevant tools fitting their unique lives and circumstances. As body composition research is enhanced, so do the futures look brighter and brighter for the times of measurement when it comes to health.
Definition and diagnostic criteria of clinical obesity. The Lancet Diabetes & Endocrinology.
Association of Normal-Weight Central Obesity With All-Cause and Cause-Specific Mortality Among Postmenopausal Women. JAMA Netw Open. 2019
Waist-Hip Ratio. NIH.
Physiological responses to food intake throughout the day. Nutr Res Rev. 2014
Association between abdominal obesity and alcohol drinking pattern in normal-weight, middle-aged adults. Public Health Nutr. 2017
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There’s a real issue here—“gym supplements” aren’t automatically harmless, and unsupervised use can increase cardiovascular risk, especially when stacking multiple products.
Most harm isn’t from basic supplements like protein—it’s from stimulants, hormone-like substances, and unregulated combinations. The risk becomes significant when users chase rapid physique gains without medical awareness.
1) Stimulant-heavy pre-workouts
2) Anabolic agents / “muscle boosters”
3) Protein excess + dehydration
High protein alone is usually safe in healthy individuals, but can increase the risk of electrolyte imbalance and arrhythmias when combined with:
4) Fat burners / thermogenics
5) Electrolyte imbalance
6) Contamination & mislabeling
People at risk include those with:
These should not be dismissed as “normal gym effects.”
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Colon cancer, medically known as colorectal cancer, was historically typical for people aged 50 or older. However, in recent years, the cancer that forms in the tissues of the large intestine has been increasing in prevalence in young adults. As many as one in five colorectal cancer patients today falls into this younger age group.
Now, a study published by the American Society of Clinical Oncology shows that marathons, which are one of the most celebrated physical activities, may be increasing the risk of the disease.
The team at Inova Schar Cancer Institute in Virginia, US, initiated the study after observing multiple “ultramarathoners” present to their cancer center with advanced colorectal cancer.
To probe the link, they recruited 100 runners to undergo colonoscopies — the gold standard for screening and preventing colorectal cancer. The team then looked at runners ages 35 to 50, who had either completed at least five marathons or two ultramarathons (any runs of 50 kilometers or more).
Presenting the findings at the 2025 American Society of Clinical Oncology (ASCO) annual meeting, Dr. Timothy Cannon, an oncologist at the Institute, stated that
Also read:Colorectal Cancer: UK Surgeon Warns Of 5 Silent Signs You Shouldn’t Ignore
Almost always, colon cancers start as small growths called polyps or precancerous lesions on the inner lining of the colon or rectum.
Moreover, the study found that the rate of advanced adenomas nearly tripled among the marathon runners, compared to the general population, at 4.5 -6 per cent.
In general, running and other forms of exercise are known to reduce the risk of developing colon and other cancers. At the same time, exercise-induced gastrointestinal injury is also believed to be associated with reduced blood flow to the intestines during long-distance running.
Notably, to date there is no evidence that definitively shows running causes polyps.
The new study presents a correlation — an increasing relationship between long-distance running and advanced adenomas. It does not prove that running directly causes the adenomas.
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The new results suggest that “intensive long-distance running is a risk factor for advanced adenomas of the colon", said Dr. Timothy, in the paper. The team also called for "refining screening strategies" for marathon runners.
It is because runners put their bodies through a lot, which can raise the risk of chronic inflammation, enabling cancerous cells to grow.
Their high-caloric foods for immediate energy can slow down digestion and impact your overall colon health.
The American Cancer Society notes that colorectal cancer is a cancer that starts in the colon or the rectum. Colorectal cancer impacts around 1.9 million people every year, noted the World Health Organization (WHO) as per its 2022 data.
It is a disease of the large bowel and a type of cancer that originates from the rectum or colon. A person's colon, cecum, rectum, and anus make up the large intestine.
According to experts, if you are above 45 years of age or have high-risk factors, you need to take the initiative to be screened, as the symptoms appear late, impacting treatment outcomes.
The common red flags for colorectal cancer include:
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What starts as a mild soreness after exercise is often ignored as simply another part of living an active lifestyle. Many people keep working out, thinking that the pain will subside with rest. But when pain keeps coming back or gets worse, it may be a sign of tendonitis - a common condition of inflammation or irritation of a tendon.
With increasing focus on fitness, gym workouts, running, and high-intensity exercises, tendon-related injuries are becoming more common. At the same time, sedentary lifestyles, poor posture, and repetitive strain from gadgets and laptops are also contributing to the problem.
Acute injury to any tendon due to repeated movement results in tendinitis and causes pain and inflammation, but when this injury is ignored and no rest is taken, they progress to tendinosis.
In tendinosis, the cause of pain is not acute inflammation, so anti-inflammatory medicine is of no use. So our focus is to repair, replace, or debride scar tissue. This is an entirely different approach from treating tendinitis.
One of the biggest challenges with tendonitis is that its early symptoms are frequently dismissed. Many people continue exercising despite the discomfort, believing “pushing through the pain” is part of staying fit. Unfortunately, this often worsens the condition.
Some common signs include:
Prolonged vigorous physical activity despite continued pain can put more stress on the tendon and exacerbate inflammation. Repeated strain, over time, can cause tendon degeneration or even tendon tears, which may take a lot longer to repair.
Athletes, fitness enthusiasts, office workers, and people whose work involves repetitive motions are the most at risk. Poor warm-up, improper exercise methods, lack of recovery time between sessions, and time during rehabilitation can also increase the risk.
Early treatment commonly focuses on reducing strain and inflammation. Symptoms are often relieved through rest, ice application, physiotherapy, stretching exercises, and posture correction. Depending on the severity of the condition, supportive braces or activity modification to reduce stress on the affected tendon may be recommended.
In more severe or long-standing cases where conservative treatment does not provide relief, advanced interventions such as steroid injections, platelet-rich plasma (PRP) therapy, or minimally invasive surgical procedures may be considered to repair damaged tendons and restore movement. Since tendons heal more slowly than muscles due to limited blood supply, recovery often takes time and patience.
Finally, USG-guided percutaneous tenotomy is done if every other treatment fails.
Not every post-workout ache is innocuous. That pain that repeatedly comes back, worsens over time, or curtails movement should not be ignored. Getting medical advice early can prevent long-term damage so that people can return to their regular activities without excessive chronic pain.
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