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 ...

Channeling your inner instinctual movement is a good way to improve mobility, core stability and flexibility. Our bodies are happiest when they’re fueled with food, hydrated and practicing regular ...

We can’t imagine our Paleolithic ancestors sinking into a couch, absorbed in a digital screen, because they didn’t have digital screens, and life was definitely different back then. One of the fitness ...

FOR MOST OF human history, "working out" wasn’t really a thing. Sure, athletes and warriors conditioned their bodies to excel in the arena and battlefield, but everyday men and women simply didn’t ...

Moving like your ancestors is the primal fitness trend gaining ground as more people shift toward functional training. Quadrobics, a workout where participants move on all fours like four-legged ...