Fitness

Experts question this study’s design and its recommendations—and point out that you probably get more exercise than you think

Denver’s hockey team is studded with stars, but training and playing the game some 5,000 feet above sea level may give their athletic performance a boost over that of their rivals

Ozempic and just getting older take off muscle. New therapies could retain it

As peptide “stacking” takes over social media feeds, we separate the science from the hype of the Internet’s latest wellness obsession

Researchers say that President Donald Trump’s resurrection of widely maligned fitness testing in schools is “half-baked” and unlikely to move the needle on youth physical activity alone

The Internet loves fitness-motivation content. Olympian and researcher Valerie Gruest explains why it can be so harmful

A sub-two-hour marathon has long been seen as a tantalizing benchmark for elite runners—and shoemakers have been in a race to design footwear that can help them get there

The world of peptides has exploded in wellness circles, but the benefits of injecting these gray-market molecules rest on little clinical evidence

Creatine does help build muscle, but social media claims for methylene blue dye are way overblown

VO₂ max is an important measure of aerobic conditioning, whether you’re an Olympian or just a person hoping to stay healthy

Researchers found that walkable city design—not personal motivation—was the key factor behind people taking 1,100 more steps per day

New research suggests that getting even just a few more minutes of sleep and exercise and eating an extra cup of vegetables every day can significantly boost longevity