The session begins with a mobility-focused warmup. In under five minutes, Mack leads you through 90-90 hip switches, world’s ...

… but our independent journalism isn’t free to produce. Help us keep it this way with a tax-deductible donation today. We’ve all heard about the big, nasty dent that the pandemic put in young people’s ...

Wuyou Sui does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Start on all fours. Extend your right arm in front of you and your left leg behind, actively reaching in opposite directions.

Feeling wiped and betrayed by all the get-abs-fast YouTube videos? You're not alone. Credit: Anna Ostanina / Getty Images Paging Dr. Internet, we need a diagnosis. In this series, Mashable examines ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...

There are plenty of ways to start getting fit in the new year, but 2020 ushered in the era of the at-home workout service. While companies like Peloton and Daily Burn have been delivering live and ...

Leotards, bright colors, and leg warmers galore — there’s nothing quite like an 80s workout. But don’t let the sassy outfits and perky music fool you: If you’ve ever exercised with an '80s fitness ...