No more wondering what to do in the gym.

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

There are a million and one workout routines out there, but which one is right for you?  Here's how to structure your weekly ...

Fueled by nerves and excitement, it’s common for runners to accelerate from the starting line with all-out power and speed. But this oftentimes leads to burnout by the end of the race. The best race ...