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.

Massive wildfires have ravaged several parts of Canada and other regions of the world, filling the air with hazardous smoke. This has triggered health warnings far beyond the fire zones.

While most people experience immediate breathing problems during and after wildfires, experts say that some health effects can persist long after the skies clear.

Why Is Wildfire Smoke Harmful?

Wildfire smoke is composed of harmful gases and microscopic particles known as PM2.5. These tiny particles are small enough to travel into our lungs and enter the bloodstream, where they can trigger inflammation throughout the body.

Unlike typical air pollution, wildfire smoke also contains toxic substances released from burning homes, plastics, furniture, vehicles, electronics, and industrial materials, making prolonged exposure particularly harmful.

Long-Term Health Risks After Wildfire Exposure

Also read: Delhi's Poor AQI, Monsoon Conditions Put Children's Lungs at Risk: Ways to Keep Kids Safe

Lung And Chronic Respiratory Disease

Prolonged exposure to wildfire smoke can have long-term effects on the respiratory system. Possible health effects may include:

• Persistent cough
• Poor lung function
• Worsening asthma symptoms
• Increased COPD episodes
• Greater risk to respiratory infections

Children, older adults, and people with existing lung conditions face the highest risk because their lung function is already compromised.

Heart Disease

Also read: Phones, Pollution, AI: What Is Driving Cognitive Decline In Humans?

The tiny particles in wildfire smoke don't just stay confined to the lungs. Once they enter the bloodstream, they can affect the cardiovascular system. In the long run, research says wildfire smoke exposure can lead to:

• Heart attacks
• Stroke
• Irregular heart rhythms
• Elevated blood pressure
• Increased inflammation in blood vessels
• Effects on Brain Health

With frequent incidences of wildfires, scientists are looking into how wildfire smoke affects the brain. Emerging evidence suggests smoke exposure may contribute to:

Headaches

• Difficulty concentrating
• Memory problems
• Cognitive decline
• Increased inflammation affecting brain function

Mental Health Consequences

Wildfires can affect mental health in more than one way. Besides the stress of evacuation and property loss, smoke exposure itself may contribute to mental health problems directly. One is at the risk of the following mental health issues after exposure:

• Anxiety
• Depression
• Post-traumatic stress disorder (PTSD)
• Sleep disturbances

Communities repeatedly exposed to wildfire events may experience prolonged psychological distress that could often go undetected.

Possible Cancer Risk

Growing evidence suggests that long-term exposure to wildfire smoke may increase the risk of several cancers. Studies have reported possible associations with lung cancer, breast cancer, colorectal cancer, bladder cancer, and certain blood cancers

Although researchers say more studies are needed to establish a direct cause-and-effect relationship, the findings highlight the importance of limiting repeated smoke exposure.

Also read: How Air Pollution Puts Heart Patients At Risk - What You Can Do About It

Pregnancy And Infant Health

Pregnant women are among the groups considered most vulnerable to wildfire smoke. Research suggests exposure during pregnancy may increase the risk of preterm birth, low birth weight and other pregnancy complications.

Healthcare providers recommend minimizing outdoor exposure whenever air quality deteriorates.

How To Protect Yourself After Wildfire Exposure?

Even after visible smoke disappears, harmful particles may remain in the air. Experts recommend:

• Monitor local air quality before going outdoors.
• Stay indoors when pollution levels are high.
• Use HEPA air purifiers if available.
• Wear a well-fitted N95 mask if exposure is unavoidable.
• Keep doors and windows closed when it is smoky outside.
• Continue taking prescribed medications for asthma or heart disease.
• Seek medical attention if coughing, chest pain, breathlessness, or other symptoms persist.

When we think of dialysis, we often picture a machine filtering blood and keeping patients alive. What rarely comes to mind is the small blood vessel in the arm that makes the entire process possible.

For every patient on haemodialysis, the arteriovenous (AV) fistula is quite literally a lifeline. Without it, dialysis cannot be performed effectively. Yet, despite being one of the most important parts of treatment, fistula care remains one of the least understood aspects of kidney disease.

This silent gap in awareness is costing patients their lifeline.

A Growing Burden That We Cannot Ignore

India adds nearly 2.2 lakh new patients with end-stage kidney disease every year, creating a demand for over 3.4 crore dialysis sessions annually.

One of the biggest challenges we see in clinical practice is that patients often seek medical help only after the fistula has already stopped functioning.

The warning signs are usually ignored.

The vibration over the fistula becomes weaker. The arm begins to swell. Bleeding continues longer than usual after dialysis. Needle insertion becomes increasingly difficult. Sometimes dialysis itself becomes less effective.

By the time patients reach an interventional radiologist or vascular specialist, the fistula may already have developed significant narrowing (stenosis) or complete blockage.

Unfortunately, many of these complications are preventable if detected early.

In our experience, nearly 30% of patients eventually lose their fistula because they report too late, when timely intervention could have salvaged access.

Also read: COVID Spikes In India: Experts Allay Fears, Stress Vaccination And Masks

Why Does This Keep Happening?

Unlike diabetes or blood pressure, there is no widespread public awareness around fistula surveillance.

Many dialysis patients receive instructions on medicines and dialysis schedules but very little education on how to examine their fistula every day.

There is also no universally implemented patient education protocol across dialysis centres, leading to inconsistent awareness about fistula care.

The result is simple: patients unknowingly damage the very access that keeps them alive.

Your Fistula Speaks Every Day - Learn To Listen

Patients should examine their fistula daily.

A healthy fistula has a continuous buzzing sensation or “thrill.” If this vibration becomes weak or disappears, medical attention should be sought immediately.

Similarly, swelling of the arm, redness, prolonged bleeding after dialysis, pain around the fistula, or difficulty during needle insertion should never be dismissed as routine.

These are early warning signs - not inconveniences.

Also read: Omicron Sub-Lineages Likely Behind COVID Surge In India: Why Deaths Are Occurring

Five Simple Habits That Can Save A Fistula

• Feel the fistula every day for its characteristic vibration.
• Never allow blood pressure measurement, blood draws or intravenous injections on the fistula arm.
• Avoid carrying heavy weights or sleeping on the access arm.
• Maintain good hygiene around the fistula site.
• Report any change in blood flow, swelling or bleeding immediately instead of waiting for the next dialysis session.

These small daily habits can often extend the life of a fistula by years.

Early Detection Can Prevent Major Procedures

One of the greatest advances in dialysis access care is that many fistula problems no longer require open surgery.

If narrowing is detected early, minimally invasive image-guided procedures such as fistuloplasty (balloon angioplasty) can restore blood flow, preserve the existing fistula and help patients continue dialysis without interruption.

The key, however, is timing.

A fistula that is evaluated early is often salvageable.

A fistula ignored for weeks may not be.

We Must Shift Our Focus from Creating Fistulas To Preserving Them

Every successful fistula represents months of planning, surgery and healing. Losing it means additional procedures, temporary catheters, higher infection risk, increased costs and emotional distress for patients already living with chronic kidney disease.

As doctors, we have become increasingly skilled at creating dialysis access.

The next challenge is ensuring patients know how to protect it.

Because for someone living with kidney failure, the fistula is not just another blood vessel.

It is the lifeline that keeps life moving.

By Dr. Avik Bhattacharyya, Senior Consultant - Interventional Radiology, CK Birla Hospitals, CMRI

GLP-1 drugs such as Ozempic, Wegovy, Mounjaro and liraglutide, best known for regulating appetite and aiding weight loss, may also help reduce symptoms of binge eating disorder (BED), which affects more than 17 million people worldwide, according to a new study.

The systematic review and meta-analysis, published in the journal eClinicalMedicine, found that GLP-1 drugs, with semaglutide as its key ingredient, reduced binge eating episodes, loss-of-control eating and emotional eating, highlighting their potential role in treating binge eating disorder alongside obesity.

Binge eating disorder affects over 17 million people globally, and around two-thirds of people with the condition also live with overweight or obesity. It is also common among individuals seeking weight-loss treatment.

"Binge eating disorder, where people regularly eat an excessive amount of food while feeling they have lost control, is common and highly impairing, affecting over 17 million people worldwide," said lead author Dr Ilaria Costantini from the Psychiatry Department at University College London (UCL), UK.

"But treatment options are limited and there are currently no approved medications, so there remains a need for better ways to help people living with this condition. We found evidence that weight loss drugs may help to manage some key symptoms of binge eating disorder," Costantini added.

Also read: Babies Without Vitamin K Shot At Higher Risk Of Brain Bleeding: Study

What Did The Study Find?

The researchers analyzed 25 randomized controlled trials conducted across 12 countries on four continents, involving 8,069 participants.

The trials evaluated GLP-1 drugs that target the appetite-regulating hormone GLP-1, including semaglutide (marketed as Ozempic or Wegovy), tirzepatide (Mounjaro) and liraglutide.

These medications suppress appetite by acting on the central nervous system and insulin secretion, delay stomach emptying, and may also influence brain pathways involved in reward and impulse control.

Compared with placebo or other treatments, people taking GLP-1 drugs reported:

• Moderate reductions in binge eating severity
• Reduced loss-of-control eating
• Lower levels of uncontrolled eating
• Reduced emotional eating

Read More: Obesity-Driven CKM Syndrome A Growing Public Health Threat, Warns American Heart Association

The researchers also found that participants taking GLP-1 drugs reported greater cognitive or dietary restraint, meaning they made more deliberate efforts to limit what they ate.

The benefits extended beyond weight loss, with improvements seen in several behaviors associated with binge eating disorder.

More Research Needed on Dietary Restraint

While increased dietary restraint was observed, the researchers cautioned that it remains unclear whether this represents healthy self-regulation or a more rigid, potentially harmful eating pattern that could worsen binge eating over time.

"From the evidence available, we cannot say whether the increase in dietary restraint reflects a positive and helpful form of self-regulation or if it is a more dysfunctional pattern of eating. We hope that future research can clarify whether or not taking weight loss drugs might contribute to more pathological forms of eating restriction such as meal skipping," said Izzy Emptage from UCL Psychiatry.

Researchers Urge Caution

The researchers said GLP-1 drugs could become an important addition to treatment plans for binge eating disorder when used alongside psychological therapies and social support.

However, they also highlighted important limitations. Most of the studies included in the review had a high risk of bias, were funded by pharmaceutical companies, and rarely included participants with a clinical diagnosis of binge eating disorder, reducing the certainty of the findings.

"GLP-1s may offer a promising additional treatment option for people living with both binge eating and obesity," the researchers said, while stressing that these drugs "should not be viewed as a standalone solution to binge eating disorder."

They added that larger, independently funded clinical trials are needed before these medications can be routinely recommended for treating binge eating disorders.