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 ...

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 ...

More casual gym-goers are going wild. Major chains are offering new classes where participants act like animals by getting down on all fours and imitating apes, donkeys, crabs and scorpions. Another ...

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 ...

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 ...