Who needs a gym when you’ve got a bedroom? Getting hot and heavy between the sheets isn’t just good for your love life — it can double as a sweaty, calorie-torching workout that leaves you lighter on ...

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. Can anything spice up ...

A new trend is spreading. Well, a new trend that involves a very old pastime. Introducing: the “churn and burn,” a viral challenge that gives all new meaning to the phrase “grocery run.” It started ...