When was the last time you measured your waistline? If you assume that BMI is the only number to focus on when it comes to your health, think twice. New research has revealed a shocking revelation—your waist circumference might be a far better predictor of men's cancer risk than BMI.

The study finds that for each 4-inch increase in waist size, a man's risk of cancer increases by a staggering 25%. Meanwhile, BMI, commonly regarded as the gold standard for assessing obesity, raises cancer risk by only 19% for the same weight gain. So, if you've been dismissing that pesky belly fat, it's time to take notice.

But why is your waistline so important? The reason is visceral fat—the hidden, deep fat that accumulates around your organs. Unlike other body fat, visceral fat is a stealthy troublemaker, causing inflammation, insulin resistance, and abnormal blood fat levels—all of which combine to create a cancer-perfect storm.

Obesity has been associated with an increased risk of numerous health conditions, including cancer, for decades. The research, though, indicates that a specific measure of the body—waist circumference—may be an even more reliable forecaster of cancer risk in men than the more frequently employed Body Mass Index (BMI). This finding emphasizes the need to pay particular attention to the distribution of fat and not merely to the weight of the body.

BMI has been the go-to measure for years for gauging health risks related to obesity. New research, though, that appears in The Journal of the National Cancer Institute indicates that waist measurement is a better predictor of cancer risk in men. According to the research, four more inches (10 cm) around the waist will add 25% to a man's cancer risk. Conversely, a 3.7 kg/m² rise in BMI (from a BMI of 24 to 27.7) increased cancer risk by only 19%.

Why is waist circumference a better predictor, then? Unlike BMI, which measures weight relative to height, waist circumference actually measures abdominal fat—specifically, visceral fat. This type of fat encircles internal organs and is also linked to higher levels of inflammation, insulin resistance, and abnormal blood lipids, all of which are factors in cancer growth. BMI, however, does not measure fat distribution, so two individuals with the same BMI can have very different levels of health risk depending on where fat is deposited on their bodies.

Why Men Are at Higher Risk?

Interestingly, the research identified a significant difference between men and women when it came to waist circumference and cancer risk. Although waist circumference and BMI were linked with obesity-related cancers in women, the relationship was weaker than for men. An increase of 12 cm (4.7 inches) in waist size or a 4.3 rise in BMI (from 24 to 28.3) raised the cancer risk in women by just 13%—a much lower percentage than for men.

Experts credit this difference to the way that fat is stored in the body. Men are more likely to carry fat around the abdomen, especially as visceral fat, which is more metabolically active and associated with cancer-producing biological alterations. Women, by contrast, store fat in peripheral sites such as the hips and thighs, where it is less likely to drive systemic inflammation and metabolic disturbances.

A possible reason is that men tend to depot fat more in the visceral regions, whereas women tend to carry more subcutaneous and peripheral fat," wrote the researchers. "This may render waist circumference a more robust risk factor for cancer in men and account for why waist circumference provides additional risk information beyond BMI in men but not women."

Cancer Types Most Linked to Abdominal Fat

The research used the International Agency for Research on Cancer (IARC) data to define obesity-related cancers. These cancers are esophageal (adenocarcinoma), gastric (cardia), colorectal, rectal, liver, gallbladder, pancreatic, renal, and thyroid cancers, and multiple myeloma and meningioma. In men, abdominal obesity is especially significant in raising the risk of these cancers through high levels of insulin and markers of inflammation.

For women, the research proposes that both waist circumference and hip circumference may give a more accurate estimate of visceral fat and cancer risk. "Adding hip circumference to risk models could strengthen the link between waist circumference and cancer, especially in women," researchers observed.

What This Means for Men's Health and Cancer Prevention?

With these results, doctors advise men to be more mindful of their waistline than only their BMI. Waist size is an easy method to gauge health risk, and its maintenance through lifestyle changes might be the key to cancer prevention.

How To Reduce Cancer Risk In Men?

Track Your Waist Size: Regularly measure your waist circumference and try to keep it in a healthy range (below 40 inches for men, according to medical advice).

Eat a Balanced Diet: A diet containing high fiber, lean protein, and healthy fats can assist in limiting visceral fat gain.

Exercise Consistently: Regular exercise with a combination of aerobic and strength training will help maintain a healthy waistline.

Control Stress and Sleep: Persistent stress and inadequate sleep tend to cause weight gain, especially in the midsection of the body.

Regular Health Screenings: Early identification of cancer risk factors through regular screening can greatly enhance long-term health status.

For decades, vaccines have transformed numerous fight against aggressive infectious diseases, saving millions of lives. Still, despite years and years of research proving their effectiveness, there is still significant skepticism surrounding vaccination. One of the most enduring claims is that vaccines, especially the measles, mumps and rubella (MMR) vaccine, can cause autism.

The belief that vaccines can cause autism has been debated for decades, despite a solid body of research failing to establish a link between the two.

In an exclusive interview with HealthandMe on World Immunization Day, Dr. Paul Offit, paediatrician and director of the Vaccine Education Center at Children’s Hospital of Philadelphia and former member of the CDC’s Advisory Committee on Immunization Practices, explained why the vaccine-autism claim is a myth difficult to debunk.

Why Is The Vaccine-Autism Issue Still Debated?

Also read: EXCLUSIVE: Ex-CDC Vaccine Advisor Says Measles Outbreak Bigger Than Reported, Slams RFK Jr’s ‘No-See Evil’ Approach

According to Dr Paul Offit, the controversy can be traced back to a 1998 paper that claimed the measles, mumps and rubella (MMR) vaccine caused autism. “I think it was born in that 1998 paper that MMR caused autism,” he said.

He said that the paper did an excellent job at convincing the masses that the adverse events related to vaccines can be long-standing and irreversible, like autism. Offit said the original claim had a lasting effect on public understanding of vaccine safety.

He said, “It’s very hard to unring the bell once you've rung it. I think it's hard to unscare people.”

He said the public-health and academic communities responded by conducting study after study to examine the alleged association. “But vaccines don't cause autism,” Offit said.

He believes that the research conducted after the 1998 paper helped address the concern. He said, “The question has been answered. Most parents of children with autism no longer believe that's the case. So I think that those studies were of value,” he said.

The 1998 paper by Andrew Wakefield and colleagues, which suggested a connection between the MMR vaccine and autism, was later retracted by The Lancet. Subsequent research has not established that MMR vaccination causes autism.

Offit said vaccines had been studied extensively as a possible environmental factor in autism. “Vaccines are probably the best studied environmental factor and that ain't it,” he said.

Autism-Vaccine Debate Is Distracting Essential Research

Also read: 'It’s The Best-Studied Vaccine In Human History': Former CDC Adviser Busts Common Myths About COVID Vaccines

Dr. Offit said that genetics plays an important role in autism, while several factors related to maternal health and pregnancy have also been associated with the condition. He said, “About 80% of autism is genetic.”

He added, “There are a number of sort of factors regarding maternal health, regarding maternal drugs, infections during pregnancy that are associated with autism.”

His comments highlight the need to understand autism through research into its different possible causes rather than focusing on vaccines. To which, Offit said that the vaccine-autism controversy has affected essential autism research.

When asked whether vaccine debates were diverting resources from research into autism causes and diagnosis, he pointed to the work of Alison Singer at the Autism Science Foundation and said there were several promising areas of investigation.

However, he criticised anti-vaccine groups for continuing to use autism as part of their arguments against vaccination. “I think that anti-vaccine groups have sadly taken the autism story hostage,” he said.

He argued that this had reduced the attention and resources that could go towards more promising areas of autism research. “So they hurt children with autism in the end,” he said.

On Revising Autism-Vaccine Debate

When asked what new evidence could make him reconsider his position on vaccines and autism, Offit said he would be open to changing his mind if a particular standard of scientific evidence were met.

“If there was an excellent retrospective study that controlled for things like healthcare seeking behavior, socioeconomic background, medical background, maternal health, et cetera, that was published in an excellent scientific journal and reproduced, then I'm willing to change my mind,” he said.

He added that a study would have to account for factors that could influence the results and be independently reproduced. “But until then, you're just hearing a lot of conspiracy theory and hand-waving,” he said.

Delhi's air quality deteriorated significantly after Diwali. Several monitoring stations recorded ‘severe’ air quality on Monday morning (November 9) after a night of Diwali festivities which resulted in widespread emission of firecracker smoke. It worsened the situation in a city already grappling with soaring air pollution due to vehicular exhaust, construction dust and stubble burning in neighbouring states.

Due to this, Delhi residents, who continue to breathe polluted air, may face symptoms like scratchy throat, coughing and irritation. But how can you tell whether your sore throat is caused by pollution or an infection that needs medical attention?

How Does Air Pollution Cause A Sore Throat?

Polluted air contains particulate matter, including PM2.5, as well as gases and other irritants. When inhaled, these pollutants come into contact with the lining of the nose, throat and respiratory tract, triggering irritation and inflammation.

Dr. Rahul Sharma, Director, Pulmonology & Critical Care, Fortis Greater Noida told HealthandMe, “People exposed to high levels of pollution may experience throat irritation, dryness, a burning sensation, frequent coughing and discomfort while swallowing. These symptoms may be more noticeable in people who spend long hours outdoors and are difficult to control.”

People with asthma, allergies or existing respiratory conditions may be more sensitive to these pollutants.

Dr Sharma added, “Pollution can also aggravate existing respiratory conditions like asthma and allergic airway disease. It is important to remember that a sore throat is not always due to infection; environmental exposure can also be a cause.”

Also read: El Niño Could Worsen Dengue, Malaria And Heat Illness: Why WHO Declared A Health Emergency

Pollution-Related Sore Throat Or Infection?

The symptoms can overlap, so a sore throat alone cannot establish its cause. However, certain accompanying signs may offer clues. Experts help us understand when a sore throat is a result of inhaling particulate matter.

Dr. Sushil Upadhyay, Consultant Pulmonologist, Kailash Deepak Hospital, Delhi told HealthandMe, “Throat irritation as an early sign. A scratchy throat is the canary in the coal mine for lung inflammation. It is the first sign that your airways defenses are overwhelmed and deep inflammation is starting.”

A pollution-related sore throat is more likely to involve dryness, scratchiness, coughing and irritation of the eyes or nose.

Dr Samir Garde, Director of Dept of Pulmonology and Lung Transplant, Gleneagles Hospital, Parel, told us, “Pollution-related irritation usually causes a dry or scratchy throat, coughing and eye irritation, which may worsen outdoors or during periods of poor air quality.”

An infection, on the other hand, may be accompanied by fever and other symptoms. They may include body aches, swollen lymph nodes, painful swallowing, tonsil inflammation or white patches on the tonsils. Viral infections can also cause a runny nose, cough and fatigue.

Dr Upadhyay said, “The flu brings high fever, body aches, and extreme exhaustion. If staying inside an air-conditioned, filtered room clears your throat, it's pollution. Otherwise, think of it as flu.”

A bacterial infection such as strep throat may cause sudden throat pain, fever and difficulty swallowing, sometimes without a cough.

Also read: New COVID-19 Variant PJ.2.1 Spreads Globally: WHO Says Symptoms Resemble Cold, Flu

When Should You See A Doctor?

A mild sore throat often improves within a week. However, medical evaluation is recommended if you have difficulty breathing, cannot swallow, are drooling because you cannot swallow, or experience rapidly worsening symptoms.

Dr Upadhyay said, “Do not ignore a sore throat if it moves to your chest. If you develop wheezing, severe breathlessness or a fever, you need a medical evaluation immediately. Seek help right away if you are gasping for air or cannot finish a single sentence in one breath.”

Persistent hoarseness, a lump in the neck or a mouth ulcer lasting more than three weeks should also be evaluated.

Dr Garde recommended, “Seek medical attention if there is chest tightness, high fever or persistent symptoms. Severe breathlessness, bluish lips or difficulty speaking due to breathing problems require immediate emergency care.”

Also read: Delhi AQI Crosses 2,000 Mark After Diwali: What Happens To Your Body Within Hours Of Exposure?

How Can You Protect Your Throat During Severe Pollution?

According to the doctors, while pollution levels remain high, reducing exposure is important. They recommend:

• Avoid outdoor exercise and limit unnecessary time outside.
• Wear a well-fitting N95 or N99 respirator when going outdoors.
• Keep windows closed during periods of high outdoor pollution and use a HEPA air purifier if available.
• Drink enough water to prevent throat dryness.
• Gargle with warm salt water to soothe irritation.
• Avoid smoking, incense and other indoor sources of smoke.

Do not start antibiotics just because your throat hurts. Antibiotics do not treat throat irritation due to pollution or viral infections. They should only be used when prescribed for a confirmed bacterial infection under doctor’s supervision.

Delhi AQI After Diwali

The city's average Air Quality Index (AQI) reached 406 on November 9, placing it in the 'severe' category, according to the Central Pollution Control Board (CPCB).

But private monitoring platform AQI.in reported an AQI of 2,283, classifying the air quality as ‘hazardous’. The reading showcased a grim post-Diwali pollution peak, an issue that has turned into an annual environmental crisis.

The stark difference in readings is because India’s AQI scale is limited to 500 while other private air quality monitoring platforms measure higher readings. So even if CPCB’s data shows 500 AQI, it can mean that the amount of harmful pollutants could be much higher.

The Supreme Court had implemented restrictions on celebrating Diwali with firecrackers by limiting time between 6 am and 7 am and 8 pm and 10 pm on November 7 and 8 and allowing only green crackers. However, firecrackers were reportedly burst beyond permitted hours.

Ahead of World Diabetes Day observed on November 14, singer Nick Jonas recently opened up about living with type 1 diabetes for almost 21 years. Diagnosed at the age of 13, Jonas spoke about his daily decision-making that revolves around managing the condition. From monitoring blood glucose levels to adjusting insulin doses around meals and physical activity, Jonas expressed the emotional challenges of living with the disease.

In an open letter written for Dexcom's A Letter to Diabetes campaign, Jonas described the condition as an ongoing part of his everyday life. “Twenty-one years, and you haven’t changed a bit,” he wrote, addressing diabetes.

He also explained how frequently he has to monitor his glucose levels and make treatment decisions. “Staring at my phone to see where my glucose is. Reaching for my pump to bolus because I’m about to eat something with 17 carbs. Those are just a couple of the hundreds of little decisions I make every week,” Jonas wrote.

He described diabetes as “an ongoing conversation between your body, your mind, and your devices.”

The singer also recalled the emotional challenges of living with a chronic condition. However, he said that speaking openly about diabetes helped him find a sense of community and connect with others experiencing similar challenges.

What Is Type 1 Diabetes?

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Type 1 diabetes is a chronic autoimmune condition in which the body's immune system mistakenly attacks and destroys beta cells that produce insulin in the pancreas.

Insulin is a hormone that helps move glucose from the bloodstream into cells, where it is used for energy. When the body produces little or no insulin, glucose builds up in the blood, resulting in high blood sugar levels.

Type 1 diabetes is different from type 2 diabetes as the latter occurs due to insulin resistance and can be a result of genetic and lifestyle factors. In short, type 1 diabetes is not caused by eating excessive carbohydrates and sugar, obesity or leading an inactive lifestyle.

Type 1 diabetes can also develop at any age, although it is frequently diagnosed during childhood or adolescence.

Symptoms Of Type 1 Diabetes

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Symptoms can develop quickly, sometimes over a few weeks. Common warning signs include:

• Excessive thirst: Constantly feeling thirsty even after drinking water.
• Frequent urination: One may feel the urge to urinate frequently as the kidneys attempt to remove excess glucose through urine.
• Unexplained weight loss: The body starts breaking down fat and muscle for energy when it cannot use glucose properly.
• Increased hunger: Cells are unable to access enough glucose for energy.
• Extreme fatigue: High blood glucose and reduced energy availability can cause chronic tiredness.
• Blurred vision: Changes in blood glucose can affect the fluid balance in the eyes.

If type 1 diabetes is not diagnosed and treated on time, it can lead to diabetic ketoacidosis (DKA), a life-threatening complication.

Warning signs including nausea, vomiting, abdominal pain, deep or rapid breathing, fruity-smelling breath and confusion need immediate medical attention.

Management Of Type 1 Diabetes

Managing type 1 diabetes involves maintaining blood glucose levels within a specific target range to reduce the risk of both high and low blood sugar. Treatment includes:

1. Insulin Therapy

People with type 1 diabetes need insulin throughout their lives. It may be administered through multiple daily injections or an insulin pump which delivers insulin continuously.

2. Regular Glucose Monitoring

Blood glucose can be monitored using instant finger-prick tests or continuous glucose monitoring (CGM) devices. CGM systems use a sensor to track glucose levels throughout the day and night.

3. Dietary Management

People with type 1 diabetes need to understand how carbohydrates affect blood glucose levels so they can adjust insulin doses accordingly.

4. Physical Activity

Exercise is encouraged, but physical activity can affect glucose levels depending on its intensity, duration, timing and the amount of insulin in the body. People may need to adjust their food intake or insulin doses to reduce the risk of hypoglycaemia.

5. Regular Medical Follow-ups

Routine assessments help monitor glucose control and identify complications affecting the eyes, kidneys, nerves and cardiovascular system.

Type 1 diabetes diagnosis does not mean a person has to give up their career, travel, exercise or other ambitions. But living with this condition involves planning and attention to blood glucose levels, food, medication and physical activity.

Jonas has spoken about the importance of not allowing the condition to define his life. In an earlier interview with NIH's MedlinePlus Magazine, he shared a message for others living with type 1 diabetes, “Know that you can still do anything you want to do with your life.”

There is no cure for type 1 diabetes currently but advances in insulin delivery, glucose monitoring and research into therapies that preserve or replace insulin-producing cells are expanding treatment possibilities.