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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When it comes to building a strong core, most of us think about exercises like crunches, or sit ups. But there is a lot more to core strength than that. One of the main aspects of core strength is stability and balance. While the floor exercises are helpful, they strain your neck muscles, so what can one do?
You can build a powerful, stable midsection entirely on your feet. Standing core workouts are often more "functional" than traditional crunches because they mimic how your body actually moves in daily life, twisting, carrying, and resisting gravity.
These are some exercises you can try. They will not only help you build strong core muscles but also build your coordination and balance.
This move is a fantastic way to wake up your entire abdominal wall. By bringing your opposite knee and elbow together in front of your body, you force your obliques to rotate and your front abs to crunch while standing. It also challenges your brain and balance as you switch from leg to leg. Focus on bringing the knee high rather than just pulling your neck down.
This move brings a cardio element to your core training. By quickly driving your knees toward your chest, you engage the lower abdominals and hip flexors. It requires a lot of energy and keeps your heart rate high while forcing your abs to stabilize your upright torso. If the jumping is too much, you can perform it as a slow, powerful march instead.
Think of this as a side-bend with a purpose. By holding a weight in one hand and leaning toward it, you stretch the opposite side of your waist. The real work happens when you use those side muscles to pull your body back to a perfectly straight, upright position. It is one of the best ways to build lateral strength and define the sides of your torso.
The wood chop mimics the diagonal motion of swinging an axe, which is a powerful, functional movement. It trains your core to handle rotational force, which is essential for sports like golf or tennis. As you pull the weight across your body, keep your hips stable and let your midsection drive the motion. This builds a core that is both strong and incredibly mobile.
Holding a weight in one hand while marching forces your body to stabilize against an uneven load. Every time you lift a knee, your core has to fire to prevent you from wobbling or tipping toward the weighted side. This exercise is excellent for improving balance and strengthening the deep "hidden" muscles of the belly that keep your hips and lower back healthy.
This is an "anti-rotation" exercise, meaning the goal is to resist movement rather than create it. As you press a cable or band away from your chest, the tension tries to pull you sideways. Your core must stay tight to keep your hands centered. It is a subtle but intense burner that builds incredible stability in the deep abdominal layers and the obliques.
This exercise is as simple as it is effective. By carrying a heavy weight on just one side, your core must work constantly to keep you from leaning over. This "anti-leaning" action recruits the deep muscles that protect your spine and improve your posture. Imagine there is a string pulling the top of your head toward the ceiling as you take steady, controlled steps.
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Your heart health does not depend on how much or intensely you exercised when as a young adult. Instead, a new study shows adults need five hours of exercise weekly to keep their heart healthy. This new research suggests that staying active through middle age is the key to preventing high blood pressure (hypertension) later in life
A long-term study published in American Journal of Preventive Medicine. of over 5,000 people found that while many people start out active in their 20s, those habits often slip away as they get older.
The study, led by experts at the University of California, San Francisco (UCSF), tracked participants for 30 years. They found that the current minimum exercise recommendations for adults might not be enough to regulate high blood pressure.
Currently, the standard advice is about 2.5 hours of moderate exercise per week. However, scientists found that people who worked out for five hours a week, double the minimum right now, and significantly lowered their risk. The benefit was strongest for those who kept up this routine until they reached age 60.
Between the ages of 18 and 40, most people’s activity levels drop significantly. As young adults move into college, start careers, or become parents, leisure time disappears, and exercise often falls to the bottom of the priority list.
Researchers noted that nearly half of the young adults in the study weren't active enough, which directly linked to seeing their blood pressure rise as they entered middle age.
High blood pressure is often called a "silent killer" because most people don’t feel any symptoms, yet it affects billions of people worldwide. If left unchecked, it can lead to:
The World Health Organization reports that more than 25 percent of men and 20 percent of women deal with this condition.
Researchers pointed out that things like neighborhood safety, work responsibilities, and socioeconomic challenges can make it harder for some groups to maintain a consistent workout routine over several decades.
Controlling high blood pressure doesn't have to be expensive. By making simple lifestyle adjustments, you can significantly improve your heart health. Mayo Clinic suggests,
You should aim for 30 minutes of daily aerobic activity like walking, cycling, or dancing. Adding strength training twice a week helps even more. Regular movement can lower your blood pressure by 5 to 8 mm Hg. Replacing habits like driving to a nearby place with walking and taking the stairs instead of the elevator can also help.
Diets like the Mediterranean diets, which has fruits, vegetables, and whole grains helps a lot. By lowering salt intake to 1,500 mg daily and eating potassium-rich foods can drop blood pressure by up to 11 mm Hg. Mayo clinic suggest that one must avoid processed foods and use herbs instead of table salt.
Limiting alcohol and quitting smoking are two of the fastest ways to improve your numbers. Smoking spikes blood pressure immediately, while excessive drinking makes heart medications less effective.
Aim for 7–9 hours of quality sleep, stress management is equally important, so practice saying "no" to extra tasks, focus on things you can control, and take time for hobbies.
Track your blood pressure at home and keep regular doctor appointments. Don't go it alone; involve friends or join a support group to stay motivated.
Credit: Instagram/Tarn Kaur
Tired of following multiple weight-loss diets and not seeing any results?
While many may recommend combining a strict, high-intensity workout routine with healthy food, Instagram-famous fitness trainer Tarn Kaur, who managed to lose nearly 40kg in less than a year, has revealed the 'weird' habits that helped her get back in shape instead.
Here is what the former lawyer, now online coach, recommends:
Kaur noted in a lengthy Instagram post: "If I don’t see it, i don’t eat it. Hiding tempting foods has saved me from so many unnecessary snacks. out of sight, really, does mean out of mind."
The fitness expert revealed that she likes to eat a piece of mint after meals or whenever junk food cravings hit. "It’s like a little pause button for my brain and stops me from reaching for junk," she noted.
In order to avoid binge eating or consuming excessive calories, Kaur logs her treats in an app even before she consumes them. She clarified that she likes to track her treats so as not restrict herself from eating but to 'take control and enjoy food without guilt'.
Kaur explained: "If a food won’t give me pure satisfaction, I skip it. Life’s too short to feel bloated for something mediocre. My body deserves better." The trainer believes life is too short to feel bloated over something mediocre and feels her body deserves better.
Kaur mentioned that saying “I'm full” out loud helps signal her brain that she's done eating and prevents mindless bites when she's not paying attention.
Citing the phrase 'out of sight, out of mind', Kaur admitted that restaurants used to once be her downfall but now she steers clear from bread baskets and chips while dining out.
The trainer also mentioned that she steers clear of comfy joggers as they often led to endless grazing for her, while fitted clothes served as a gentle reminder to respect portions and stay mindful of her body.
Lastly, Kaur told her viewers that while leftovers tempt her, they do not align with her goals go straight into the bin. For her, it is not about guilt but about choosing herself first.
Apart from this, Kaur also recommends swapping traditional Indian tea with black coffee, white rice with cauliflower rice, packaged juices with electrolytes, fried snacks with baked veggie chips, sugary biscuits with almond flour cookies and white bread with wholegrain bread to maximize benefits.
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