Low-intensity exercise is thought to be better for keeping this “stress hormone” in check. But scientists say cortisol plays a crucial role in fueling your workout. Often called the “stress hormone,” ...

At 5 feet, 4 inches, the Bay Area woman weighed 220 pounds. Any physical activity would leave her out of breath. "I'd hike up a hill here in San Mateo or go on a hike up San Bruno Mountain. Usually ...

Getting back into exercise after illness can be challenging. Tips for returning to exercise after being sick include starting at home, keeping hydrated, and avoiding overexertion. People who want to ...

The benefits of exercise are so great that if it were a drug, it would be a miracle cure. But what is the optimal dose for better health: are people who run ultramarathons, lift weights every day or ...

Usain Bolt smashed the 100-metre sprint record at the 2009 World Championships in Athletics in Berlin in a floodlit stadium under an inky night sky. This article is part of a series on fitness that ...

Physical therapist and strength coach Susie Spirlock, DPT, played sports and exercised her whole life. “I placed a large part of my identity in what I could do in the gym,” she tells SELF. But after ...

Pull requests help you collaborate on code with other people. As pull requests are created, they’ll appear here in a searchable and filterable list. To get started, you should create a pull request.

Let’s start thinking differently about exercise. Here’s how we know. Animal exercise studies typically run rats for weeks on running wheels. The animals gleefully run every night, sprinting several ...

Physical activity improves cognitive and mental health in all sorts of ways. Here’s why, and how to reap the benefits. By Dana G. Smith Growing up in the Netherlands, Henriette van Praag had always ...