Fitness

A workout boosts the fitness of your gut microbiome. This creates molecules that aid your immune system, metabolism, and more

Author Casey Johnston presents a new way to think about fitness in her new book A Physical Education

Instead of using the controversial body mass index, or BMI, to assess weight, an international group of scientists proposes an approach that looks at how excess body fat affects health

The latest research is an antidote to toxic quackery and honest confusion about health

A new study suggests that waves of aging-related changes occur at two distinct points in our life

Tai Chi, yoga, water exercises and other low-impact workouts may help prevent severe falls among older adults

As the patents on various weight-loss drugs near expiration, companies in India and China are vying to make lower-cost versions that will widen access to such treatments

A number of whole-body deodorants are coming to market. But are they safe and effective?

An elite athlete’s metabolism mostly looks different from that of a person with COVID—but their occasional similarities can reveal important insights into health and disease

Experts explain how moving in reverse can take pressure off your knees and improve flexibility

“Bed rotting,” or staying in bed all day, has been touted as a self-care routine on TikTok, but it might actually make you feel worse. Here’s why that happens and how you can snap out of it

Studies of goal setting reveal why it’s so hard to keep resolutions—and how to make ones that actually stick