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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Breast Cancer After Childbirth: Why New Mothers Should Not Ignore Breast Lumps

Updated Jun 20, 2026 | 04:27 PM IST

SummaryBecause of the normal physiological changes such as enlarged, denser and sometimes lumpy breasts due to milk production, post-pregnancy, many women may overlook or dismiss a breast lump, believing it to be temporary.
Breast Cancer After Childbirth: Why New Mothers Should Not Ignore Breast Lumps

Credit: iStock

As oncologists, we often meet patients at some of the most difficult moments of their lives. Yet there are times where a patient's journey reminds of the extraordinary resilience that people can show while facing the challenges that cancer presents

I recently treated a 38-year-old woman whose story has stayed with me.

Having just welcomed her baby into the world, her demanding yet joyful routine revolved around feeding schedules and sleepless nights. It was during this period that she noticed a hard lump in her breast.

Breast Lumps Can Cause Aggressive Breast Cancer

Initially, she assumed it was related to breastfeeding. This is common to what most mothers might have assumed as during pregnancy and after childbirth, the breasts undergo several changes. They become enlarged, denser and sometimes lumpy due to milk production. Because of these normal physiological changes, many women may overlook or dismiss a breast lump, believing it to be temporary. Fortunately, she decided to get it checked.

A sonomammography revealed a suspicious BIRADS 4A lesion. A biopsy confirmed Triple-Negative Breast Cancer (TNBC), which is one of the more aggressive forms of breast cancer. It was classified as a Stage III disease after evaluation through PET-CT which showed involvement of the axillary lymph nodes. The tumor also had a high Ki-67 index, indicating that it was growing rapidly.

Facing Cancer While Caring for A Newborn

The untimely diagnosis found the mother facing difficult questions about cancer treatment, her future and her ability to care for her child. One of the immediate challenges was that she had to stop breastfeeding.

Under the guidance of her pediatrician, her baby was transitioned to bottle feeds. This can be an emotionally challenging process for mothers as the feeling of guilt tends to seep in when breastfeeding plans are disrupted by illness.

A Modern Treatment Approach

After detailed and prolonged discussions with the patient and her family, we initiated treatment with neoadjuvant immunotherapy using pembrolizumab in combination with chemotherapy. This approach has emerged as one of the more prominent advances in the treatment of high-risk Triple-Negative Breast Cancer, having significantly improved outcomes for many patients.

Motherhood is a physically and emotionally taxing experience but the patient showed incredible strength during her cancer therapy, driven by her child and the unwavering support of her family.

Following completion of neoadjuvant therapy, repeat PET-CT imaging showed a near-complete response. She subsequently underwent surgery, and the final pathology report revealed a pathological complete response, meaning no residual invasive cancer had been detected.

This was the desired outcome for the treating team as well as the patient. She later completed the remaining course of immunotherapy, bringing her total treatment duration to one year. Today, both mother and child are doing well.

Breast Cancer Can Occur During Pregnancy

This tremendous journey highlights an important message. The fact that breast cancer can occur during pregnancy and the postpartum period deserves wider attention. Any breast lump that persists or feels unusual should be evaluated by a healthcare professional, as early diagnosis remains one of the most important factors in achieving positive outcomes.

The process is reflective of the advances in cancer treatment that are changing the outlook for patients with aggressive cancers. These advances are done through the integration of immunotherapy into treatment protocols which is helping more patients achieve improved long-term outcomes. The mother’s story is a reminder that cancer and motherhood are not mutually exclusive journeys.

Her ability to navigate this path is due to her timely diagnosis, access to appropriate treatment, family support and personal resilience. What began as a frightening diagnosis soon after childbirth ultimately became a story of hope, courage and survival. This is a powerful reminder to every new mother who might discover an unusual breast lump, that listening to your body and seeking medical advice early can make all the difference.

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When Constipation Signals A Serious Health Problem

Updated Jun 20, 2026 | 11:00 AM IST

SummaryLong-term or excessive use of over-the-counter laxatives without medical supervision may mask an underlying problem and can sometimes worsen bowel function over time.
When Constipation Signals A Serious Health Problem

Credit: iStock

Constipation is one of the most common digestive complaints affecting people of all ages. It is generally defined as having fewer than three bowel movements per week, passing hard stools, excessive straining, or a feeling of incomplete evacuation.

While occasional constipation is usually not a cause for concern and can often be managed through lifestyle changes, persistent or severe constipation may sometimes indicate an underlying health condition that requires medical attention.

Common Causes of Constipation

Several factors can contribute to constipation, including inadequate fiber intake, insufficient water consumption, lack of physical activity, stress, changes in routine, and certain medications. In many cases, improving dietary habits and maintaining an active lifestyle can help restore normal bowel function. However, when constipation becomes chronic or is accompanied by other symptoms, it should not be ignored.

Warning Signs

One of the most important warning signs is a sudden change in bowel habits, particularly in adults over the age of 50. Persistent constipation associated with unexplained weight loss, loss of appetite, fatigue, abdominal pain, bloating, or blood in the stool may indicate a more serious condition, such as colorectal cancer. Early detection is crucial, making timely medical evaluation essential.

What's Behind Chronic Constipation

Chronic constipation may also be linked to several medical disorders. Conditions such as hypothyroidism, diabetes, Parkinson’s disease, multiple sclerosis, and certain neurological disorders can affect the normal movement of the intestines. In some individuals, constipation may result from pelvic floor dysfunction, where the muscles involved in bowel movements do not coordinate properly.

Irritable Bowel Syndrome (IBS), particularly the constipation-predominant type, is another common cause of ongoing bowel difficulties. Inflammatory bowel diseases, intestinal narrowing, or bowel obstruction can also present with severe constipation and abdominal discomfort.

Many people rely on over-the-counter laxatives for relief. While these medications can be effective when used appropriately, long-term or excessive use without medical supervision may mask an underlying problem and can sometimes worsen bowel function over time.

How To Maintain Good Digestive Health

To maintain good digestive health, individuals should consume a fibre-rich diet that includes fruits, vegetables, whole grains, and legumes. Adequate hydration, regular exercise, and responding promptly to the urge to pass stools are equally important.

Constipation is often harmless, but persistent symptoms should never be dismissed. If constipation lasts for several weeks, becomes increasingly severe, or is associated with alarming symptoms such as bleeding, significant weight loss, or severe abdominal pain, seeking medical advice is essential. Recognizing these warning signs early can help identify serious health conditions and ensure timely treatment.

(By Dr. Pradeepta Kumar Sethy, Director Gastroenterology, Manipal Hospital EM Bypass & Mukundupur)

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Yoga Day 2026: Yoga May Help Conditions Ranging From Male Infertility to Arthritis, Say AIIMS Doctors

Updated Jun 20, 2026 | 09:00 AM IST

SummaryAccording to the expert, research has shown that yoga, including asanas, pranayama, and meditation, can help reduce inflammatory cytokines linked to swelling, pain, stiffness, and joint damage.
Yoga Day 2026: Yoga May Help Conditions Ranging From Male Infertility to Arthritis, Say AIIMS Doctors

Credit: AI generated image

Yoga may offer benefits beyond flexibility and stress relief, with doctors from the All India Institute of Medical Sciences (AIIMS), New Delhi, ahead of International Yoga Day 2026, saying that studies have shown the ancient practice could help improve outcomes in conditions ranging from unexplained male infertility to autoimmune disorders such as rheumatoid arthritis and fibromyalgia.

This year marks the 12th International Day of Yoga, observed annually on June 21. The theme for this year, "Yoga for Healthy Ageing," highlights the practice's potential to enhance mobility, balance, flexibility, and mental well-being, helping people maintain health and independence at every stage of life.

Yoga And Unexplained Male Infertility

Dr. Rima Dada, Professor at the Laboratory for Molecular Reproduction and Genetics, Department of Anatomy, AIIMS Delhi, told HealthandMe that cases of unexplained male factor infertility have increased in recent decades. In many of these cases, standard sperm parameters appear normal, but sperm cells are affected by oxidative stress and DNA damage.

According to Dr. Rima, studies conducted in men with unexplained infertility found that regular yoga practice reduced oxidative stress, decreased sperm DNA damage, and normalized the expression of genes critical for early embryonic development. These benefits, however, generally require consistent practice for more than six months.

Also read:International Yoga Day 2026: 10 Desk Yoga Poses That Can Undo Hours of Sitting

Dr. Rima described yoga as an “art of living” that combines

  • mindful asanas,
  • relaxation techniques,
  • pranayama,
  • meditation,
  • healthy nutrition,
  • adequate sleep.

According to her, such lifestyle measures may improve sperm DNA quality, motility, and overall reproductive health while potentially reducing the burden of genetic and epigenetic disorders in future generations.

Yoga And Rheumatoid Arthritis

Dr. Rima also highlighted the role of yoga in rheumatoid arthritis, an autoimmune disease that typically affects small joints initially and may later involve larger joints as well as organs such as the lungs, heart, and brain.

She described yoga as an "art of living" that should be incorporated into daily life through mindful asanas, relaxation techniques, pranayama, meditation, a whole plant-based diet, and adequate sleep.

Read More: Trying to Quit Tobacco? Yoga Could Improve Your Chances, Suggests Study

She added that research has shown that yoga, including asanas, pranayama, and meditation, can help reduce inflammatory cytokines linked to swelling, pain, stiffness, and joint damage. Pranayama practices such as Anulom Vilom, Bhramari, and Ujjayi were highlighted as particularly beneficial.

For people living with rheumatoid arthritis, she recommended beginning with gentle loosening exercises under the supervision of a trained yoga therapist and avoiding strenuous postures during acute flare-ups. Pranayama and meditation, she said, may help reduce inflammation, improve emotional resilience, and support longer periods of remission.

Yoga As An Adjunct Therapy

Dr. Uma Kumar, Head of the Department of Rheumatology at AIIMS New Delhi, explained that autoimmune diseases occur when the immune system mistakenly attacks the body’s own tissues and organs.

Conditions such as rheumatoid arthritis, systemic lupus erythematosus, Sjogren’s syndrome, myositis, antiphospholipid antibody syndrome, and IgG4-related disease can significantly affect quality of life, often leading to pain, fatigue, depression, sleep disturbances, and reduced mobility.

“All these components are improved by yoga,” Dr. Kumar said.

However, she stressed that yoga should be viewed as an adjunct to medical treatment rather than a replacement. According to her, yoga may complement conventional therapies by improving sleep, flexibility, mental well-being, lifestyle habits, and overall quality of life.

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Yoga's Benefits For Fibromyalgia

Dr. Renu Bhatia, Additional Professor in the Department of Physiology at AIIMS Delhi, said supervised yoga therapy may help improve physical activity, sleep quality, muscle blood flow, pain levels, and flexibility in people with fibromyalgia.

The experts described fibromyalgia as a condition characterized by widespread pain despite normal laboratory findings and the absence of obvious inflammation.

Dr. Renu noted that studies have shown six weeks of supervised yoga intervention can reduce tender points while improving sensory symptoms, brain function, and neural excitability. However, she cautioned that yoga should be practiced under supervision, as excessive joint movement may aggravate symptoms in some patients.

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