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. So where should you ...

Cardiovascular training — sometimes called aerobic exercise — is any repetitive movement that increases the heart rate and amount of oxygen your body uses. The Physical Activity Guidelines for ...

Cardio is more than just running laps or hopping on a bike. It's any movement that gets your heart pumping, your body sweating and your energy levels soaring. Whether you're chasing a weight loss goal ...