"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." As a fitness professional and doctor of physical therapy, I’ve always been active. I spent most of my 20s ...

Walk into any gym, and you’ll hear conflicting advice about reps. Some trainers swear by heavy weights and low reps. Others advocate for lighter weights and high reps. Your workout buddy might tell ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? As a fitness professional and doctor of physical therapy, I’ve always been ...