Fitness News

October 25, 2025

Top Headlines

Your Gut Microbes Might Be Turning Fiber Into Extra Calories

Oct. 24, 2025 — ASU scientists found that people whose gut microbes make more methane extract more calories from fiber-rich foods. Methanogens help the microbiome turn fiber into energy by consuming hydrogen and producing methane. Using advanced metabolic chambers, ...

Running Fixes What Junk Food Breaks in the Brain

Oct. 21, 2025 — New research reveals that exercise counteracts the mood-damaging effects of a Western-style diet through specific gut and hormonal mechanisms. Running restored metabolites tied to mental well-being and balanced key hormones like insulin and leptin. ...

How Just Minutes of Running Can Supercharge Your Health

Oct. 21, 2025 — Interval running condenses the powerful effects of regular running into shorter, high-intensity bursts. Research shows it can improve cardiovascular health, regulate blood sugar, and reduce body fat more effectively than longer steady runs. Just a ...

Scientists Reveal the Best Exercise to Ease Knee Arthritis Pain

Oct. 20, 2025 — A sweeping review of over 200 studies finds that aerobic exercises like walking and cycling offer the best pain relief and mobility gains for knee osteoarthritis. Compared to other types of exercise, aerobic training showed the strongest evidence ...

How Cutting Lipids Could Starve Breast Cancer

Oct. 19, 2025 — Researchers found that triple-negative breast cancer cells are “addicted” to lipids, a feature tied to obesity. By studying mice, they discovered that high lipid levels alone accelerate tumor growth. Lowering these fats slowed cancer ...

Surgery Beats Ozempic for Long-term Health, Cleveland Clinic Finds

Oct. 18, 2025 — Weight-loss surgery dramatically outperformed GLP-1 medications in improving longevity and reducing heart, kidney, and eye complications for people with obesity and diabetes. Over 10 years, patients lost far more weight and required fewer ...

This Type of Meat Supercharges Muscle Growth After Workouts

Oct. 15, 2025 — Scientists discovered that lean pork builds muscle more effectively post-workout than high-fat pork, even with identical protein levels. Using advanced tracking techniques, they found that fat content blunted the body’s muscle-building response. ...

Scientists Found a Smarter Mediterranean Diet That Cuts Diabetes Risk by 31%

Oct. 12, 2025 — Spanish researchers found that combining a calorie-reduced Mediterranean diet with exercise and professional support cut type 2 diabetes risk by 31%. Participants also lost weight and reduced waist ...

When Men Drink, Women and Children Pay the Price

Oct. 11, 2025 — Men’s heavy drinking is fueling a hidden crisis affecting millions of women and children worldwide. The harms, from violence to financial instability, are especially severe where gender inequality is high. Experts warn that alcohol policies must ...

A Hidden “Backup Heater” That Helps Burn Fat and Boost Metabolism

Oct. 9, 2025 — Scientists have uncovered a surprising new way the body can burn energy and stay warm. Deep inside fat tissue, they found a hidden system that helps the body use up calories, even without exercise. By studying mice, researchers discovered that brown ...

Scientists Reveal Green Tea’s Fat-burning Secret

Oct. 8, 2025 — New research shows green tea may help the body burn fat and balance blood sugar. In a study with obese mice, it improved metabolism and muscle health without harming lean animals. Scientists say its powerful plant compounds work together to regulate ...

What Happens to Your Body When You Eat Too Many Ultra-processed Foods

Sep. 27, 2025 — Ultra-processed foods make up the bulk of U.S. diets, and new research links high intake to inflammation, a predictor of heart disease. People consuming the most UPFs were far more likely to show elevated hs-CRP levels, especially older adults, ...

Latest Headlines

updated 11:59am EDT

You Might Look Healthy, but Hidden Fat Could Be Silently Damaging Your Heart

Oct. 23, 2025 — McMaster researchers found that deep abdominal and liver fat can quietly damage arteries, even in people who appear fit. Their MRI-based study of ...

Bird Flu Hiding in Cheese? The Surprising New Discovery

Oct. 21, 2025 — Researchers discovered that avian influenza (H5N1) can survive in raw milk cheese made from contaminated milk, even after the 60-day aging process required by the FDA. However, highly acidic cheeses ...

Exercise Might Be the Key to a Younger, Sharper Immune System

Oct. 14, 2025 — Endurance exercise may train the immune system as much as the muscles. Older adults with decades of running or cycling had immune cells that functioned better and aged more slowly. Their inflammation ...

Why Gen X Women Can’t Stop Eating Ultra-Processed Foods

Sep. 29, 2025 — Researchers found that middle-aged adults, especially women, are far more likely to be addicted to ultra-processed foods than older generations. Marketing of diet-focused processed foods in the 1980s ...

Brain Fat, Not Just Plaques, May Be the Hidden Driver of Alzheimer’s

Sep. 24, 2025 — For decades, scientists believed Alzheimer’s was driven mainly by sticky protein plaques and tangles in the brain. Now Purdue researchers have revealed a hidden culprit: fat. They found that brain ...

Scientists Reveal Pill That Helps Shed 20% of Body Weight

Sep. 24, 2025 — A massive international study has shown that the experimental oral obesity drug orforglipron can help patients shed over 10% of their body weight, with nearly one in five losing 20% or more. Unlike ...

Being Too Thin Can Be Deadlier Than Being Overweight, Danish Study Reveals

Sep. 14, 2025 — New research from Denmark challenges long-held assumptions about body weight and health, revealing that being overweight—or even moderately obese—does not necessarily increase the risk of death ...

One Daily Habit Could Save You from Chronic Back Pain

Sep. 12, 2025 — Walking every day could be the simplest and most effective way to prevent chronic lower back pain. A large study involving over 11,000 people found that walking more — not faster — reduces the ...

Surprising Gut Discovery Reveals a Hidden Trigger of Diabetes and Liver Disease

Sep. 10, 2025 — Scientists in Canada have uncovered a surprising culprit behind high blood sugar and liver problems: a hidden fuel made by gut bacteria. This ...

How Orangutans Thrive in Feast and Famine Without Gaining Weight

Sep. 9, 2025 — Orangutans, humans’ close evolutionary relatives, have developed remarkable strategies to survive in the unpredictable rainforests of Borneo. A Rutgers-led study reveals that these apes balance ...

Earlier Headlines

Why Ultra-Processed Diets Make You Gain Fat Even Without Extra Calories

Aug. 30, 2025 — Men eating ultra-processed foods gained more fat than those eating unprocessed meals, even with equal calories. Their hormone levels shifted in worrying ways, with testosterone falling and pollutants ...

Ancient DNA Finally Solves the Mystery of the World’s First Pandemic

Aug. 30, 2025 — Scientists have finally uncovered direct genetic evidence of Yersinia pestis — the bacterium behind the Plague of Justinian — in a mass grave in Jerash, Jordan. This long-sought discovery ...

The Fat You Can’t See May Be Damaging Your Heart, Even If You Exercise

Sep. 6, 2025 — Hidden fat wrapped around organs, known as visceral fat, has now been linked to faster heart aging. Using AI and imaging from more than 21,000 people in the UK Biobank, scientists found that this ...

Tiny Green Tea Beads Trap Fat and Melt Away Pounds Without Side Effects

Aug. 24, 2025 — Researchers have created plant-based microbeads that trap fat in the gut, helping rats lose weight without side effects. Unlike current drugs, the beads are safe, tasteless, and easy to mix into ...

Exercise May Actually Reverse Your Body’s Aging Clock

Aug. 31, 2025 — New research suggests that exercise may not just make us feel younger—it could actually slow or even reverse the body’s molecular clock. By looking at DNA markers of aging, scientists found that ...

Can a Diet Really Ease Lipoedema? Sunniva’s Journey to Pain Relief and Weight Loss

Aug. 10, 2025 — Sunniva Kwapeng struggled with lipoedema, a painful condition causing disproportionate fat accumulation, until finally being diagnosed in her 40s. An NTNU study found that a low-carb diet helped ...

How Much Damage Are Ultraprocessed Foods Really Doing to Your Health?

Aug. 10, 2025 — Many foods we consume today are ultraprocessed, packed with unhealthy ingredients, and linked to major health risks. As consumption of these foods rises, so do chronic health issues, especially among ...

Scientists Just Found a Tiny Molecule That Could Change How We Lose Weight

Aug. 10, 2025 — Researchers at the Salk Institute have used CRISPR to uncover hidden microproteins that control fat cell growth and lipid storage, identifying one confirmed target, Adipocyte-smORF-1183. This ...

Losing Weight but Gaining Weakness? What Ozempic Might Be Doing to Your Muscles

Aug. 10, 2025 — Ozempic’s weight loss benefits might come at the cost of muscle strength, even if muscle size remains relatively stable. This raises significant concerns for older adults, who are already at risk ...

This Diet Helped People Lose Twice as Much Weight, Without Eating Less

Aug. 5, 2025 — People eating minimally processed foods lost twice as much weight as those on ultra-processed diets, even though both diets were nutritionally balanced and participants could eat freely. This ...

Walk Faster, Live Longer: How Just 15 Minutes a Day Can Boost Lifespan

July 29, 2025 — Fast walking, even just 15 minutes a day, can dramatically reduce the risk of death, especially from heart disease, according to a large study involving nearly 80,000 low-income and predominantly ...

This Gut Hormone Could Explain 40% of IBS-D Cases—and Lead to a Cure

July 29, 2025 — A mysterious gut hormone may be behind many cases of chronic diarrhea, especially in people with undiagnosed bile acid malabsorption, a condition often mistaken for irritable bowel syndrome. ...

Breakthrough Lung Cancer Treatment Supercharges Immune Cells With Mitochondria

Aug. 3, 2025 — Scientists have found a way to supercharge lung cancer treatment by transplanting healthy mitochondria into tumors, which both boosts immune response and makes chemotherapy far more effective. By ...

Can AI Predict Cancer? New Model Uses Genomics to Simulate Tumors

July 27, 2025 — A team of scientists has developed a remarkable new approach to modeling how cells behave over time—using a digital "forecast" much like predicting the weather. By combining patient ...

Fat Melts Away, but So Does Muscle: What Ozempic Users Need to Know

July 30, 2025 — GLP-1 drugs like Ozempic are transforming weight loss, but a new UVA study warns they're not improving a critical measure of health: cardiorespiratory fitness. While these medications help ...

This DNA Test Can Predict If a 5-Year-Old Will Be Obese as an Adult

July 25, 2025 — What if we could predict obesity before it ever takes hold? A global team has created a genetic test that forecasts a child’s risk of adult obesity before age five—years before other factors kick ...

New Genetic Test Predicts Obesity Before You Start Kindergarten

July 22, 2025 — A groundbreaking study involving genetic data from over five million people has uncovered how our DNA can predict obesity risk as early as childhood. The new polygenic risk score outperforms previous ...

Active but Still Gaining Weight? Duke Scientists Reveal Why

July 20, 2025 — People in richer countries aren t moving less they re just eating more. A new Duke study shows that diet, not laziness, is fueling the obesity epidemic across industrialized ...

Walk Faster, Age Slower: The 14-Step Boost That Builds Strength

July 28, 2025 — Walking just a bit faster could be the key to aging well. Researchers found that older adults who upped their walking pace by just 14 steps per minute significantly improved their physical ...

Three-Person DNA IVF Stops Inherited Disease—eight Healthy Babies Born in UK First

July 18, 2025 — In a groundbreaking UK first, eight healthy babies have been born using an IVF technique that includes DNA from three people—two parents and a female donor. The process, known as pronuclear ...