Men over 40 are rethinking what it means to stay fit. Long hours under fluorescent lights and rigid routines feel out of step with what their bodies now demand. A growing number are dropping machines ...

Dumbbell exercises for men over 55 to build muscle fast, a CSCS shares a simple 20-minute morning routine.

Every day, we have the opportunity to learn new things. A few days ago, I learned more about primal movement, an exercise style I've seen around in my years of gym-going and YouTube browsing, but ...

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 ...

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 ...