Want to expand your knowledge and earn some cash on the side, or full-time, without leaving home? Consider becoming an online personal trainer. You could also become a virtual physical therapist. This ...

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. Should you get a ...

Gympass, a corporate fitness platform, has acquired Trainiac, a Seattle startup that makes software to facilitate 1-on-1 online training workouts. Gympass, which raised $220 million in June, will now ...

Whether your motivation to get up and move more feels nonexistent, you don't know WTH to do at the gym, or you want to level up your workouts—technology has a way to help you out. Meet online personal ...