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Fitness & Physical activity news

Breathalyzer can 'sniff out' when your body starts burning fat

Researchers have developed a breath detector with a chemical sensor that sniffs out when your body is burning fat through a single exhale. Reporting in Device, the handheld, smartphone-assisted device measures acetone—a ...

Exercise addiction is real, but often overstated

With fitness culture booming and "no days off" mindsets trending, new research is challenging common assumptions about "exercise addiction"—finding that the issue is real but often misunderstood and overstated.

Collagen peptides support bone health for female runners

Collagen is a protein found in skin, hair, nails, tendons, cartilage and bones. Our bodies naturally produce collagen using the foods we eat. But in recent years, collagen peptides have gained popularity as a supplement to ...

How exercise keeps our brains healthy as we age

There's growing evidence linking brain health with exercise. A new study from Victoria University (VU) strengthens the case for exercise as a critical part of protecting the brain from age-related decline like dementia and ...

Parents as 'coaches' can boost children's physical activity

Schoolchildren in Hong Kong face intense academic demands, with long hours of sedentary study leaving little time for movement. On average, their physical activity falls short of the World Health Organization's recommendation ...

Muscles matter for diabetes risk, new study finds

A major new international study led by Curtin University has found diabetes risk is about more than body weight or obesity, revealing that muscle health also likely plays a major role in whether people develop the condition.

How fatigue shapes World Cup interceptions

An interception can last less than a second. A defender reads a pass, steps into its path and reaches the ball before its intended recipient. Yet that brief movement requires the brain to judge speed, distance and direction ...

Pro soccer players show signs of shrinking brains

World Cup fever has America in its grip as the international soccer tournament grinds steadily toward the final. But a new study highlights a darker side to the sport: the toll soccer can take on the brains of professional ...

A call for greater focus on social factors that shape health

The American College of Sports Medicine (ACSM) has published a new call to action statement urging the sports medicine community to intentionally incorporate social determinants of health (SDoH) into research, clinical care, ...

Investigating AI-based personal training

A feature News and Perspectives story on AI fitness advice has been published in the Journal of Medical Internet Research.. In "Should AI Be Your Personal Trainer?", JMIR Correspondent Anna Zucker covers the growing use of ...