In the fitness world, there are three types of people: those who love cardio, those who don’t, and those who also aren’t fans but choose to do it anyway. If I were going to put myself into a category, ...

View post: The ‘Marginal Gains’ Philosophy 4x US Olympian Matt Anderson Uses to Cheat the Clock and Sustain Elite Power at 39 Zone 2 cardio rate training means working in one of five heart rate zones ...

Few would disagree that cardio, also called aerobic exercise, is good for your health. Of the 10 most common chronic diseases, seven are "favorably influenced by regular physical activity," according ...

Dr. Valerie Cholet is a Professor of Kinesiology. She earned her doctorate at Penn State University and has taught in higher education for over 20 years. Her areas of specialization include Exercise ...

Fitness programs can be built around just about anything. CrossFit is based on the philosophy that constantly varied movements performed with moderate intensity improve physical competence. Yoga is ...

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. January 12, 2026 Add ...

Whoever we are, whatever we’re doing, we have a measurable heart rate. It’s a pretty clear sign of being alive. But what should your heart rate be when exercising? When we exercise, our heart rate ...

Your heart rate can tell you a lot about your fitness and cardiovascular health. Your heart beats consistently, day in and day out, but you may not generally pay close attention to it. You might take ...

The more they train, the more runners become familiar with various statistics – mileage, pace and elevation gain being among them. But one figure that should always be on every runner’s radar? Maximum ...