The back consists of large, complex muscles that support your trunk and spine. There are many types of back muscles, and they are all essential, helping you walk, bend, twist, and hold your body ...

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. This is going to get ...

Electrical muscle stimulation involves sending electrical impulses through the skin. This stimulation may provide benefits, such as helping to repair tissue and strengthen muscles. The electrical ...