Abs workouts do not need to be long to be very hard, but even so when a video popped up on my YouTube feed claiming to be the "hardest abs workout ever" and it was only 10 minutes long, I was suitably ...

An invite-only challenge promised to be the world’s hardest workout, designed to push the human body past comfort and reason.

75 Hard: What happened when I tried the internet's toughest fitness challenge? - This brutal 11-week fitness challenge has taken over the internet. But critics have called it ‘ridiculous’, and ...

We're definitely fans of exercise snacking, but sometimes nothing but a long, sweaty workout will do — and if that's what you're craving, this 45-minute high-intensity interval training workout with ...

If you need a reminder of how incredibly popular the Insanity workout — a super-hard, DVD-based workout created by celebrity fitness trainer and choreographer Shaun T— was back in the late 2000s, how ...

If you work out regularly—or even just once in a while—you’re probably familiar with hitting “the wall.” Hitting the wall can happen when you’re out for a jog and finishing the rest of your planned ...

The fitness phenom and social media star has created the burpee-push-up-squat-jump hybrid of your dreams (or nightmares). And you don't need equipment to do it. Thankfully, you don’t need any machines ...

“Repeating the same movements every session can lead to boredom and plateaus,” Mosca says. “Mixing in playful elements—like ...