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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.
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."
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.
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.
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.
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India is in the peak of summer, with heatwave conditions affecting several parts of the country. The India Meteorological Department (IMD) has predicted that these extreme heat conditions will continue over the next few days, especially across North and Central India.
According to IMD's latest bulletin, heat wave conditions are likely in isolated pockets of Bihar, Haryana-Chandigarh-Delhi, Punjab, East Rajasthan, Vidarbha, Chhattisgarh, and Jharkhand.
The IMD has also forecast a yellow alert for heatwave conditions at isolated places in Delhi from today, with maximum temperatures expected to climb between 41 °C and 44 °C through April 24. The state government has issued guidelines for all schools, focusing on hydration and safety measures.
As temperatures rise, health experts highlighted the disproportionate burden of heat on women and the related physical, social, and financial effects. Studies show women often have higher heat-related mortality rates and suffer from increased fatigue, dehydration, and reproductive health issues.
Women typically face higher risks during heatwaves than men due to
Heat stress is known to interfere with the endocrine system, which disrupts hormonal balance. This means that severe heat can cause delay or interrupt menstrual cycles, causing heavier or more painful periods, and, in severe cases, absence of menstruation. Women with conditions like PCOS or endometriosis face compounded stress.
"Many women report feeling unusually tired, irritable, or drained during heat waves, and hormones can play a role," Dr. Tripti Raheja, Director - Obstetrics & Gynecology at the CK Birla Hospital (R), Delhi, told HealthandMe.
Women are more likely to feel this during certain hormonal phases, such as menstruation, PMS, pregnancy, perimenopause, or menopause.
“Women’s core temperatures rise after ovulation. That, combined with a higher surface area-to-mass ratio, means they absorb heat more quickly,” Mike Tipton, professor and leading expert in applied physiology at the University of Portsmouth, was quoted as saying to Thisdaylive.com.
Women in perimenopause or menopause may experience hot flashes, night sweats, and sleep disturbances, making heat waves exhausting.
Also read:Heatwave Hassles: What Body Odour Could Say About Your Health
Iron deficiency or heavy bleeding can also lower energy levels, and extreme heat may worsen weakness.
Pregnant women naturally have higher metabolic demands, so dehydration and fatigue can set in faster.
Without sufficient hydration, blood flow to the placenta might be reduced, potentially harming the baby. Heat exhaustion in pregnancy can cause early labor or stillbirth. Thyroid disorders and PCOS can also contribute to fatigue and reduced overall energy levels, Dr. Raheja said.
"Long exposure to high temperatures can disrupt the balance between hormones such as estrogen, progesterone, and thyroid hormones, which regulate energy, mood, and metabolism," Dr. Sakshi Goel, Senior Consultant Obstetrics & Gynecology at Rainbow Children's Hospital, Delhi, told HealthandMe.
Dehydration further worsens this by affecting circulation and temperature control, leading to exhaustion, headaches, and dizziness.
Moreover, sleep disturbances from hot nights can impair melatonin production and disrupt overall hormonal rhythms. This leads to poor recovery and low energy the next day.
Read: Excessive Energy Drinks Damaging Young Adults’ Livers, Experts Warn
Understanding how heat affects hormonal health lets women take steps to manage fatigue and maintain overall well-being during extreme weather.
To cope better, the experts suggested prioritizing hydration and including ORS when needed.
Dr. Goel noted that even mild fluid loss can hurt circulation and lower the body’s ability to regulate temperature. This can lead to exhaustion, headaches, and dizziness. Other preventive measures include:
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We usually think of nature as something pleasant. A place to relax, unwind, and maybe take a break from routine. But over time, it is becoming clearer that it is not just about feeling good in the moment. Regular time in natural surroundings actually supports both mental and physical health in ways we often overlook.
Most of us spend our days indoors, moving from one closed space to another. Screens, artificial lighting, constant noise, and very little exposure to natural light or open air. It becomes normal, but the body does not fully adapt to it. The result often shows up as poor sleep, frequent fatigue, irritability, or a constant sense of mental heaviness.
Spending time in nature does not act like a quick fix. But it does help the system slowly come back into balance. It helps reduce stress at a deeper level.
Stress is not always obvious. It builds quietly in the background. Being in natural spaces helps bring it down in a way that does not require effort. When you are around trees, open skies, or even a small green space, the body begins to relax on its own. Breathing slows, muscles soften, and the mind becomes less tense.
This is why even a short walk outside can leave you feeling lighter. Not because your situation has changed, but because your body is no longer in a constant state of alert.
It supports anxiety and low mood. For people dealing with anxiety or feeling low, being in nature can create some distance from repetitive thoughts. The mind is usually busy replaying or anticipating things. In a natural setting, attention shifts outward. You begin to notice small details without trying.
That shift matters. It gives the mind a break from itself.
Over time, regular exposure to natural environments has been linked to better mood, improved focus, and a greater sense of emotional stability. It does not replace professional help when needed, but it can support recovery in a steady, quiet way.
It improves sleep and daily energy. Sleep is something a lot of people struggle with now, even if they don’t always connect it to their daily routine. When you spend most of your time indoors, your body doesn’t really get clear signals about when to be active and when to slow down.
Getting some natural light during the day, even for a short while, helps reset that rhythm. It tells your body that it’s daytime, which makes it easier to wind down later.
Something as simple as stepping out in the morning or taking a walk in the evening can make a difference over time. Sleep starts to feel more settled, and when that improves, you usually notice it in your mood, your focus, and your energy throughout the day.
It has an effect on physical health too. The impact is not just mental. Being in natural environments has been associated with lower blood pressure, better heart health, and improved immunity. Fresh air, movement, and reduced stress all contribute to this.
It is not about doing anything intense. Even something as simple as a slow walk, sitting in a park, or just being in a quiet outdoor space can make the body feel a little lighter.
It creates space without asking for effort. One of the reasons nature works so well is that it does not demand anything from you. You do not have to perform, improve, or follow a routine. You can show up tired, distracted, or stressed, and it still helps.
This makes it easier to return to, especially on days when everything else feels like effort. It can be part of everyday life. You do not need a big plan to make this work. A few minutes in sunlight, a short walk in a nearby park, sitting near a tree, or even noticing the sky at the end of the day can be enough to start with.
These small instances do not appear very significant; however, they accumulate over time and provide us with enhanced cognitive functioning, emotional stability, and an overall healthier body.
While Earth Day reminds us of the need for preserving the environment, it is crucial to note that our well-being is directly linked to the environment.
We perform better when we are one with it. Sometimes, all it takes for us to take care of ourselves is just stepping out into the natural world.
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India is seeing a steady and worrying rise in breast cancer cases, with numbers nearly doubling over the past ten years in many urban areas. What was once considered a gradual increase has now become much more visible across the country.
Over the last two decades, breast cancer cases have been slowly increasing. But in the last decade, the rise has been sharper. At the same time, there has been a major shift in the type of cancers affecting women. Earlier, cervical cancer was the most common. Today, breast cancer has taken that position across India.
One of the biggest reasons behind this rise is that lifestyles have changed, especially among urban dwellers. Diets are now richer in fats, with physical activities taking a backseat, leading to obesity becoming normal. These factors, along with hormonal changes, delayed pregnancies, and genetic risks, all contribute to a higher chance of developing breast cancer.
At the same time, there is also a more encouraging side to this story. More women today are getting diagnosed earlier than before. A decade ago, many patients would come in with advanced stages of the disease. Now, a larger number are being detected in Stage 1 and Stage 2. This shift is important because early detection significantly improves survival.
Better awareness and easier access to screening have played a big role in this change. Campaigns during Breast Cancer Awareness Month have helped bring conversations around breast cancer into the mainstream. More women are now opting for regular check-ups and mammograms, which means cancers are being caught earlier.
However, the overall numbers still remain a concern. It is estimated that one in every 25 to 28 women in India will develop breast cancer at some point in their lives. When this is applied to the country’s population, it translates into a very large number of women being affected.
The important thing to understand is that this rise is not due to one single reason. It is a mix of lifestyle changes, increased awareness, better detection, and possibly hormonal and environmental factors that are still being studied.
The way forward is clear. Regular screening is one of the most effective tools available today. Women above the age of 40 should ideally undergo a mammogram every year, even if there are no symptoms. Early-stage breast cancer can be treated very effectively, with cure rates going up to nearly 99% when detected at the earliest stage.
While the numbers may seem alarming, there is also a sense of progress. More awareness, better screening, and earlier diagnosis mean that outcomes are improving. The focus now needs to be on making screening a routine habit and encouraging healthier lifestyles.
Breast cancer is on the rise in India, but with the right approach, it is also one of the cancers where early action can make the biggest difference.
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