"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." I’ve been an avid long-distance runner for more than 10 years—and my job and passion have led me to test ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." There's no reason to make running any harder than it is naturally. We don't need to run in suboptimal, ...

Last winter, a study startled the running world when a team of researchers concluded that, under the right circumstances, Kenyan superstar Faith Kipyegon could break a barrier long thought impossible ...

When you toe the start line of a 10K, your race day is going to be totally different than if you were running a marathon. But despite the contrast in those two race experiences, there are some ...

I still remember my first long run. I was 19, home from college, and it was one of those perfect summer days: bright and blue and not too humid. When I got to the end of the trail, my typical ...

(CNN) — For a six-day period, Grant Fisher felt like everything he touched would turn to gold. The American distance runner had never held a world record at the start of the year, but over the course ...

Distance running is experiencing a surge in popularity, particularly among Gen Z. Athletes who under-fuel their bodies risk a condition called Relative Energy Deficiency in Sport (REDs). Symptoms of ...