Lately, I’ve wondered if 2021 is conspiring against our best efforts to stay in shape. Gyms are shuttered, or operating at limited capacity, with no end date in sight. High-profile home fitness ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." Quaking quads can be a good thing—especially when they're the result of adding an often underutilized ...

I first heard about Brrrn a few years ago when I was working in New York City. The studio conducted classes in a 50-degree room (hence the name), and became popular for their “slide” classes, which ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. It is 10K Tuesday, try this playground slide ...

Livvy Dunne‘s abs take center stage in a new two-slide workout shared on Snapchat. The gymnast's toned core gets the spotlight as she writes in one of the snaps, "broke a sweat on set." Have a look at ...

When you hear the words “core workout,” you probably think of the planks and crunches you bust out after spending 30 minutes on the treadmill, or the sit-ups you do during Mad Men commercial breaks.