Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. If you’re bored with ...

Adding a little sliding disk under your foot make moves like lunges and planks a bajillion times harder. Try these slider disc exercises. Our editors independently select these products. Making a ...

Let’s face it, repeating the same leg exercises can get monotonous. It's also not productive—to continually challenge yourself and build lower body muscle, you need to mix up your moves. That’s why ...