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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Toddler Left Partially Blind After ‘Ear Infection’ Diagnosis—What Did Doctors Miss?

Updated Jan 16, 2026 | 07:00 PM IST

SummaryThree-year-old Chloe Kefford was left partially blind after a suspected ear infection turned out to be a brain tumour. Read how she battled cancer, endured years of treatment, and was honoured for her bravery by Cancer Research UK.
toddler partially blind

Credits: Canva

A three-year-old girl was left partially blind after what first seemed like a routine ear infection was later diagnosed as a life-threatening brain tumour. As per Express UK, Chloe Kefford was rushed to A&E when she started experiencing car sickness and balance problems. Doctors initially diagnosed her with an ear infection and sent her home with antihistamines. But as Chloe’s condition worsened, her parents insisted on further testing, which revealed a tumour affecting her optic nerve.

Ear Infection Symptoms Masked A Life-Threatening Diagnosis

Chloe, from Formby, Merseyside, underwent open brain surgery and faced three-and-a-half years of treatment, including proton beam therapy last year, after experiencing two relapses. Proton beam therapy uses high-energy protons to precisely target the tumour, limiting damage to surrounding healthy tissue.

Open Brain Surgery And Years Of Intensive Treatment Followed

Now nine years old, Chloe has been honoured with a special award from Cancer Research UK for her bravery throughout her treatment. She received her initial care at St George’s Hospital in London and The Royal Marsden, before being transferred to Alder Hey in Liverpool.

Proton Beam Therapy Used After Cancer Relapsed Twice

Chloe’s mother, Nikki, 38, recalled that the family had been planning a move from Surrey to Merseyside before Chloe fell ill. As per Express UK, she said: “The house was already sold and we were planning our new life by the beach when Chloe became ill. Then we ended up moving and having to isolate for months. She relapsed not long after we moved and had more chemotherapy, then she rang the bell in April last year, but unfortunately, she relapsed again in July. So, we were supposed to be going on holiday to Disneyland in Paris and instead we went to Manchester for six weeks for Chloe to have proton beam therapy.”

Nikki added: “She is partially sighted now and has no peripheral vision; one eye is particularly badly affected. The main aim now is to preserve what eyesight she has left. We’re hopeful that the recent targeted treatment has got the cancer once and for all. She’s on steroids at the moment and is being monitored with three-monthly scans. She’s still in recovery and struggles with fatigue from the treatment, but we hope she’ll have a bit more energy soon. She’s our little ray of sunshine.”

Each year, around 400 children and young people in the North West are diagnosed with cancer. Advances in treatment and research are helping make therapies more effective and less harmful. Alder Hey Children’s Hospital in Liverpool is one of several centres across the UK taking part in pioneering clinical trials offering innovative new treatments.

In 2018, Cancer Research UK launched the Children’s Brain Tumour Centre of Excellence, supported by TK Maxx. The virtual centre brings together international experts in children’s brain tumour research to transform how treatments are developed. Every child nominated for a Star Award receives this recognition, which is endorsed by celebrities including JoJo Siwa and Pixie Lott.

Cancer Research UK spokesperson Jemma Humphreys said: “After everything Chloe’s been through, it’s been an absolute privilege to celebrate her incredible courage with a Star Award.”

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Norovirus Spreads Rapidly In UK With Doctors Flagging New Symptoms

Updated Jan 16, 2026 | 06:00 PM IST

SummaryNorovirus is a highly contagious stomach virus causing vomiting and diarrhoea. Learn the symptoms, how it spreads, who is most at risk, and ways to prevent infection.
norovirus new symptoms

Credits: Canva

People experiencing certain symptoms are being urged to stay at home as a highly contagious virus spreads quickly across England. Fresh figures from the UK Health Security Agency show a 47% rise in cases during the first two weeks of 2026. This sudden jump has led the agency to remind the public about basic hygiene steps that play a key role in limiting the spread. Data suggests that norovirus is affecting people aged 65 and above the most, and although overall activity remains within normal seasonal levels, there has been a noticeable increase in outbreaks in hospital settings.

The latest UKHSA surveillance update also points to falling levels of flu, COVID-19, and RSV in the opening week of the year. While all winter virus levels are currently where they would be expected for this time of year, people are being encouraged to continue following simple precautions to help keep infections on a downward path.

What Is Norovirus?

Norovirus is an extremely infectious virus that irritates the stomach and intestines, causing gastroenteritis. It often leads to sudden vomiting, diarrhoea, nausea, and stomach cramps, and in some cases may be accompanied by fever or body aches. Although it is sometimes referred to as the “stomach flu,” it has no link to influenza. The virus spreads easily through contaminated food or water, shared surfaces, or close contact with someone who is infected. According to the Cleveland Clinic, most otherwise healthy individuals recover within a few days with rest and fluids, but preventing dehydration and avoiding passing the virus on to others is essential.

Norovirus Symptoms

Common symptoms of norovirus include:

  • Nausea.
  • Vomiting.
  • Diarrhoea.
  • Stomach pain.

You may also experience:

  • Headache.
  • Fever.
  • Body aches.

Symptoms usually develop between 12 and 48 hours after exposure and typically last for one to three days.

Doctors Report New Symptoms Of Norovirus

Both flu and norovirus can behave unpredictably, with case numbers rising and falling throughout the season. This makes simple preventive steps especially important. For illnesses affecting the stomach or respiratory system, such as norovirus, regular handwashing remains one of the most effective measures.

Health experts stress that alcohol-based hand sanitisers do not work against norovirus. Washing hands thoroughly with soap and warm water, along with cleaning surfaces using bleach-based products, is far more effective in reducing the spread. Good ventilation indoors can also help limit the transmission of respiratory viruses like flu. Anyone who develops symptoms is advised to stay at home whenever possible.

If going out cannot be avoided, wearing a face covering may help, particularly when around people who are more vulnerable.

Amy Douglas, Lead Epidemiologist at the UKHSA, said, according to the Mirror: “We have seen a clear rise in norovirus cases in recent weeks, particularly among people aged 65 and over, alongside an increase in hospital outbreaks. Although levels are still within what we would normally expect, there are simple actions people can take to stop norovirus spreading further.

“Washing hands with soap and warm water and cleaning surfaces with bleach-based products are key steps. Alcohol gels do not kill norovirus, so they should not be relied on alone.

“If you have diarrhoea and vomiting, do not return to work, school, or nursery until 48 hours after symptoms have stopped, and avoid preparing food for others during this time. If you are unwell, please stay away from hospitals and care homes to protect those most at risk from infection.”

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Is Your Child’s Uneven Shoulder A Sign Of Scoliosis? What Parents Need To Know

Updated Jan 16, 2026 | 02:34 PM IST

SummaryScoliosis is a spinal condition marked by a sideways curve, often seen in children and teens. Learn early signs, causes, types, and when parents should seek medical care.
scoliosis uneven shoulder in children

Credits: Canva

Scoliosis is a fairly common spinal condition that is most often detected during adolescence. Each year, nearly 3 million new cases are diagnosed in the United States, and most of these fall under idiopathic scoliosis, a form that typically develops during the teenage years without a clear cause. In many cases, structural changes in the spine go unnoticed by parents until they begin to show outward physical signs. Scoliosis and kyphosis are among the most frequently seen spinal disorders, both involving abnormal curvature of the spine.

Scoliosis refers to a sideways curve of the spine and is most commonly seen in children and teenagers, though it can affect people at any age. Congenital scoliosis, in particular, may not be visible at birth. It can remain hidden for years and often becomes noticeable during periods of rapid growth. What begins as a minor internal change can gradually turn into a clearly visible curve as a child enters puberty.

To understand this condition better, we spoke with Dr Saraswati Viswanathan, Consultant – Orthopaedics at Manipal Hospital, Kanakapura Road, who shared her insights.

What Is Scoliosis?

Scoliosis is a condition in which the spine curves from side to side, unlike the spine’s normal front-to-back shape. In many cases, the curve is mild and may not cause noticeable symptoms, but it can sometimes lead to back discomfort and changes in posture. The condition is most commonly diagnosed during adolescence. According to the Cleveland Clinic, treatment options may include physical therapy, the use of braces, or surgery, depending on the severity.

Symptoms Of Scoliosis

As noted by the Cleveland Clinic, scoliosis often does not cause obvious symptoms. However, when symptoms do appear, they may include:

  • Back pain.
  • Trouble standing straight.
  • Weakness in the core muscles.
  • Pain in the legs, or sensations such as numbness or weakness.

What Are The Types Of Scoliosis?

There are three main types of scoliosis:

  • Idiopathic scoliosis: This is the most common form. The term “idiopathic” means that the exact cause is unknown. Research suggests it can run in families and may have a genetic connection.
  • Congenital scoliosis: This is a rare condition caused by abnormal spinal development before birth. It occurs when the vertebrae do not form properly during early embryonic growth.
  • Neuromuscular scoliosis: This type is linked to conditions that affect the muscles and nerves supporting the spine. It is often seen alongside neurological or muscular disorders such as cerebral palsy, spina bifida, muscular dystrophy, or after certain injuries.

How Can We Identify This Condition Early?

According to Dr Viswanathan, while a visible S-shaped or C-shaped curve is a well-known sign of scoliosis, one of the earliest indicators parents can look for at home is uneven shoulder height. If one shoulder consistently appears lower than the other, it may suggest an underlying spinal curve. Other signs to watch for include a noticeable hump on the back, uneven rib or chest appearance, or hips that look tilted or asymmetrical when the child is standing straight.

If you notice any of these changes, there is no need to panic, but it is important to take action. One simple screening method is Adam’s Forward Bend Test. Ask your child to bend forward at the waist and look for any unevenness in the shoulders or a raised area on one side of the back. Early screening and timely care can make a significant difference in managing spinal health and preventing the condition from worsening. Scheduling a visit with a pediatrician or orthopaedic specialist for proper physical and clinical evaluation can help rule out structural issues and ensure your child gets the right support as they grow into adulthood.

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