Cardio (also called cardiovascular exercise or aerobic exercise) is an important part of staying physically fit. During cardio, your heart beats faster, pumping oxygenated blood throughout the body.

Cardio exercises have major benefits for your heart, as you probably know. What's more, aerobic exercise can boost your brain health and can even reduce the risk of death. Running is the workout most ...

Welcome to Start TODAY. Sign up for our free Start TODAY newsletter to receive daily inspiration sent to your inbox — and join us on Instagram! Stepping up your cardio game is a great way to lose ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through the links below." If you’re new to working out, easing back into fitness after an injury or simply want a break from ...