Ever wondered about that massive machine with a sliding barbell at the gym? Allow us to introduce you to the Smith machine. Despite being a staple in most gyms, this behemoth can be ...

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 ...

The fitness world is divided: On one side, you’ve got the purists who swear by barbells, dumbbells, and kettlebells. This crew is all about functional strength—workouts that mimic real-life movements ...