Using BMI To Classify People As Obese Is Flawed Say Experts

Updated Jan 16, 2025 | 11:57 AM IST

SummaryBMI is used to classify individuals as underweight, healthy weight, overweight, or obese based on their height and weight. It is calculated by dividing weight in kilograms by health in meters squared. However, there are reasons while it falls short.
BMI Not the right way to measure obesity

A new report published in The Lancet Diabetes & Endocrinology challenges the conventional definition of obesity, and urges a shift from the reliance on Body Mass Index (BMI) to a more nuanced approach. This is supported by over 50 global medical experts. The report also recommends splitting the term "obesity" into two categories: "Clinical obesity" and "Pre-clinical obesity". This aims to improve diagnosis and treatment for over a billion people worldwide living with obesity.

Clinically Obese

This applies to individuals whose obesity has progressed to a disease state, manifesting in organ damage, heart disease, type 2 diabetes, or other health complications. These individuals could also experience symptoms like breathlessness, joint pain, or impaired daily functioning. Treatment also involves medical interventions, including weight-loss medications or surgery.

Pre-Clinic Obese

Whereas the term "pre-clinic obese" refers to those who are overweight but not yet exhibiting health issues. While they may be at risk of developing obesity-related conditions, their organ function and overall health remain intact. What they need is preventive care, which includes dietary guidance, counselling, and regular monitoring to avoid and reduce future health risks.

What does the study say?

The study, led by Professor Francesco Rubino from King's College London emphasizes that obesity is not one-size-fits-all condition. This means it should rather be treated as a spectrum as some individuals maintain normal organ function despite being classified as obese. There are others who may face severe health complications too. However, the current method of calculating obesity based on BMI often leads to misdiagnosis or inadequate care.

The report also states that BMI, while is useful for analyzing population trends, is a flawed unit of measuring individual health. Therefore, there is a need to redefine obesity, and healthcare professionals can provide more precise care by distinguishing those who need immediate medical intervention and those who require preventive strategies.

Limitations of BMI, Why It Falls Short?

BMI is used to classify individuals as underweight, healthy weight, overweight, or obese based on their height and weight. It is calculated by dividing weight in kilograms by health in meters squared. However, there are reasons while it falls short.

•Muscle vs Fat: Athletes or muscular individuals often have high BMIs despite the low body fat

•Fat Distribution: BMI does not measure fat around the waist or organs, which could be more dangerous to one's health.

•Individual Health Variation: It also overlooks the specific health conditions such as heart diseases or diabetes, or any other, while evaluating a person's category in terms of weight.

ALSO READ: Is It Time To Say Goodbye To BMI?

Scope Of Study

By redefining obesity, the study could transform the approach to diagnosis and treatment. It can focus on individual health risks rather than BMI alone. Healthcare providers can also offer tailored care. This also will ensure hat weight-loss medications like Wegovy or Mounjaro are prescribed only to those who genuinely require it.

As per Professor Louise Baur from the University of Sydney, a Children's obesity expert said that this redefinition allows both adults and children to receive more appropriate care while reducing over-diagnosis and unnecessary treatments.

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Explained: Why Thyroid Disorders Are More Common in Women

Updated May 25, 2026 | 02:00 PM IST

SummaryMood swings, fatigue, and weight fluctuations are some of the early symptoms of thyroid disorders.
thyroid

Imbalanced thyroid can lead to weight fluctuations. (Photo credit: iStock)

World Thyroid Day is observed on 25 May every year. This day aims to spread awareness about thyroid disorders, their symptoms, and management options that can help women. However, one concern that continues to linger with respect to thyroid disorders is why they occur more often in women. Hormonal changes, lifestyle factors, and a higher risk of autoimmune conditions can increase the risk of thyroid problems in women. Yes, that’s right! Hence, women should ensure they go for timely health check-ups. Here, an expert highlights vital tips for women. Read on to know more about this and seek timely help. Remember, thyroid problems should not be left untreated at all.

In an interview with Health and Me, Dr Shruti Kotangale, Consultant Gynaecologist, Obstetrician, and Infertility Expert at AIMS Hospital, Dombivli, explained why thyroid problems are more common among women. Read here to know how gender makes a difference.

Why do thyroid disorders occur more often in women?

Thyroid disorders are rising among many women. The thyroid is a small gland in the neck, but it plays a critical role in controlling metabolism, energy levels, and maintaining hormonal balance. Women can suffer from thyroid problems because of frequent hormonal changes during puberty, pregnancy, and menopause. These changes can impact thyroid health. Lifestyle factors such as stress, poor diet, and lack of sleep can also worsen thyroid imbalance. Hence, women are at a higher risk of suffering from autoimmune conditions, where the body’s immune system attacks the thyroid gland.

Hypothyroidism vs hyperthyroidism

Conditions such as hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid) are commonly seen in women. Hypothyroidism occurs when the thyroid gland is underactive. Symptoms can include tiredness, weight gain, dry skin, hair fall, constipation, feeling cold, a slow heartbeat, and low mood or depression. Hyperthyroidism occurs when the thyroid gland becomes overactive, and women may experience weight loss, a fast heartbeat, sweating, anxiety, tremors, irritability, frequent bowel movements, and even difficulty sleeping. Women are advised to seek immediate medical attention and manage these symptoms without any further delay.

How to manage thyroid disorders?

Thyroid disorders may be concerning, but they are manageable with appropriate care and management tips as recommended by experts. Both hypothyroidism and hyperthyroidism can be managed with timely diagnosis, regular screening, and taking medications as suggested by the doctor. It is also important to eat a balanced diet, exercise daily for at least 30 minutes, get sound sleep at night, and de-stress through yoga and meditation. This World Thyroid Day, the focus should be on awareness, regular check-ups, and taking small steps to stay healthy and manage thyroid problems. Moreover, follow the doctor’s advice and do not self-medicate, as doing so can be risky.

So ladies, this World Thyroid Day, make an effort to know more about this group of disorders that affects your gender more often than men. Be it fatigue, mood swings, or weight fluctuations, it is imperative to know the early warning signs of this condition in order to work towards a more preventive approach.

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Ulcerative Colitis vs Crohn’s Disease: 8 Key Differences Every Person Must Know

Updated May 25, 2026 | 07:00 AM IST

SummaryUlcerative colitis affects only the innermost lining of the bowel. Crohn’s disease, on the other hand, can involve all layers of the intestinal wall.
Ulcerative Colitis vs Crohn’s Disease: 8 Key Differences Every Person Must Know

Credit: AI generated image

IBD or Inflammatory Bowel Disease is a growing health concern worldwide - particularly amongst young adults. The two main types of IBD are Ulcerative Colitis and Crohn’s disease. However, these can be confused because they share symptoms.

Some of these are abdominal pain, diarrhea, fatigue, and weight loss. They affect the digestive tract differently, thus also have different complications and treatment plans. It is important to understand these differences so that patients may seek out timely diagnosis and better disease management.

1. Different Parts of the Digestive Tract Are Affected

Ulcerative Colitis is limited to the colon and rectum. Inflammation begins in the rectum and spreads continuously upwards. In Crohn’s disease, any part of the digestive system can be impacted. Including the mouth, esophagus, stomach, small intestine, and colon. However, it is most commonly the small intestine that is involved in Crohn’s disease.

2. Inflammation Pattern is Different

In ulcerative colitis, inflammation is continuous. There are no healthy gaps in between the affected areas. Crohn’s disease causes patchy inflammation. Meaning, there are sections of healthy tissue known as “skip lesions”.

3. Crohn’s Disease causes more serious damage

Ulcerative colitis affects only the innermost lining of the bowel. Crohn’s disease, on the other hand, can involve all layers of the intestinal wall. This increases the risk of complications such as fistulas, bowel obstruction, and intestinal narrowing.

4. Symptoms May Look Similar, But Often Differ

Both conditions can cause diarrhea, abdominal cramps, fatigue, and unintended weight loss. However, bloody stools are more common in ulcerative colitis. Crohn’s disease may also cause mouth ulcers, severe nutritional deficiencies, and pain in the anal region.

5. Nutritional Problems Are More Common in Crohn’s Disease

Because Crohn’s disease frequently affects the small intestine, patients may struggle to absorb nutrients properly. This struggle results in anemia, a vitamin B12 deficiency, low iron levels, and weight loss.

6. Surgery Has Different Outcomes

Ulcerative colitis can be cured by removing the colon. In Crohn’s disease, surgery is used mainly to treat complications, but inflammation can affect another part of the digestive tract.

7. Smoking Affects the Diseases Differently

Smoking worsens Crohn’s disease. It increases the risk of flare-ups, complications, as well as repeat surgeries. However, Ulcerative Colitis does not show the same pattern. Some studies have found lower rates of ulcerative colitis among smokers. Although smoking is never recommended as a treatment because of its serious health risks.

8. Treatment Approaches

Both conditions are treated with anti-inflammatory medications, immunosuppressing drugs, and dietary changes. But in Crohn’s disease, often more aggressive and long-term treatment is required. This is because it can affect the deeper layers of the bowel and multiple parts of the digestive tract.

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Robotic Surgery Is Not About Robots Taking Over

Updated May 24, 2026 | 08:00 PM IST

SummaryIn robotic-assisted surgery, the surgeon is in control throughout the procedure. The robotic system does not make independent decisions. It functions as a precision instrument.
Robotic Surgery Is Not About Robots Taking Over

Credit: Canva

Most people who hear the words “robotic surgery” picture something from a science fiction film. A machine operating independently, the surgeon watching from across the room. The reality is considerably less dramatic and considerably more reassuring.

In robotic-assisted surgery, the surgeon is in control throughout the procedure. The robotic system does not make independent decisions. It functions as a precision instrument, translating the surgeon’s movements into actions with a degree of accuracy that is difficult to achieve through conventional techniques alone. A useful parallel is GPS navigation — the driver still steers, still makes every turn, still decides the route. The technology makes the execution more reliable.

What this means for patients, practically, is a procedure designed to do what it needs to do with less disruption to the surrounding tissue. Less disruption means less post-operative pain. Less pain means rehabilitation begins sooner. And sooner rehabilitation means the things patients actually care about — walking without discomfort, climbing stairs, travelling, returning to work — come back faster.

This is why robotic surgery has gained traction in orthopedics in particular. Joint replacement patients are not looking for a technical achievement. They are looking to move again. They want to walk to the kitchen without wincing, attend a family function without sitting out the evening, and pick up their grandchildren. The recovery is the point, and the precision that robotic assistance enables is what makes that recovery more predictable.

There are persistent myths worth addressing directly. That robotic surgery is risky because it relies on machines — it is not, because the surgeon remains in control and the system includes multiple real-time safety checks. That it is only accessible in premium or specialty settings — increasingly, it is not. That the higher upfront cost cannot be justified — for many patients, the shorter hospital stay, lower post-operative pain, and reduced likelihood of complications make the calculus straightforward.

Healthcare is moving toward precision and personalization, and patients are moving with it. The question most people are now asking before surgery is not only whether the procedure will work. It is how quickly and how fully they will get their life back afterward. Robotic-assisted surgery was built to answer that question.

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