In honor of National Best Friend Day, here's a five-move, full-body workout you can do with your BFF, straight from Kim Kardashian's trainer. Exercising with a partner has been scientifically proven ...

The at-home fitness space is more or less dominated by Peloton, which probably makes you think that whether you're stretching with the company's app or riding one of its machines, like the Bike, ...

Daniel Lieberman, a Harvard anthropologist, has studied exercise for decades. He says a workout buddy is better than guilt to stay accountable ...