You hear it at the beginning of every flight: In the event of an emergency, oxygen masks will drop from the plane ceiling for all passengers. But how much oxygen is really available for each flier?

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 ...

Experts detail the benefits of swimming, from strengthening your muscles to reducing inflammation and boosting your mental health—and how to get started. Swimming offers a low-impact exercise with ...

Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. VO2 max measures how much ...