A cell is fundamentally a container—a vessel that encapsulates life at the most basic level. Many biologists believe encapsulation of chemicals may have been necessary for evolution to gain traction.

Anaerobic exercise uses glucose for energy, instead of oxygen. Aerobic (cardio) and anaerobic exercises both improve health, but only anaerobic exercises build muscle mass and strength. Anaerobic ...

As you age, your body changes. Some of the things you used to be able to do aren’t as easy anymore. It’s normal to have changes in flexibility, muscular strength, bone density, and the time it takes ...

I'm a Fitness & Nutrition writer for CNET who enjoys reviewing the latest fitness gadgets, testing out activewear and sneakers, as well as debunking wellness/fitness myths. In my free time I enjoy ...