But Metzl said that extreme exertion—i.e. burpees—release endorphins, which give us the boost we need to get through our day.

As Dreiss notes, burpees are basically a combination of three individual strength moves: a plank, a push-up, and a squat. And within those three exercises, multiple muscles are activated. “You’re ...

But taking the crown for the most popular trend is the ‘30 day gallon challenge’, with a third of British social media users trying it, according to sports bra brand Hunkemöller. As it says ...