I discovered spin classes a decade ago, and subsequently got certified to teach them myself. In the years since, I haven't focused on other kinds of cardio group classes—but for a time, I was obsessed ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you're reading this, you're one of many WH members looking to engage in cardio in a way that's fun, ...

Add Yahoo as a preferred source to see more of our stories on Google. If you're on the hunt for easy, equipment-free cardio exercises, look no further! Join Denise and Katie Austin for an easy ...

With warmer weather finally here, many people are excited to get outside to see and do more. Though gyms continue bustling and fitness classes remain popular year-round, this is the time of year for ...

Hedy Phillips is a freelance lifestyle writer based in New York. While she's not writing on topics like living on a budget and tips for city dwelling, she can usually be found at a concert or ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. The Cardio Load ...