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.

Jenny Hardman loves her daily workouts at Orangetheory and says she understands why they're USA Today's #1 Gym!

CARDIO—AEROBIC ACTIVITIES like walking, running, swimming, and cycling—not only reduces total cholesterol, LDL, vLDL and ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you’ve recently started a journey to lose weight safely yet efficiently, doing cardio for weight loss ...

The recommendation to get at least 150 minutes of moderate-intensity cardio exercise weekly remains a cornerstone of health advice. Yet nearly 80% of Americans fail to meet these guidelines, often ...

Consider the following workouts if you are focused on building leg muscle stamina while improving your cardio scores. These are ideal for those with strong legs but lack endurance in their heart, ...

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...