If you want to boost your cardio fitness, you’ve got two ways to level up your workouts: push harder or faster, or keep at it for longer. Each option comes with its own challenges. The first can ...

When you’re gearing up for a run or workout, your warm-up might be an afterthought. You may even skip a pre-run routine altogether so that you can get straight to your effort. However, running coaches ...

Is your workout too easy? Challenge yourself to get more fit and age better. The more you exercise, the easier it gets. That’s why, at some point, you may need to power up your workouts. It’s ...

This full-body routine fits into even the busiest schedule. This full-body routine fits into even the busiest schedule. Credit... Supported by By Hilary Achauer Videos by Theodore Tae You started the ...

Colleen Murphy is a senior editor at Health. She has extensive experience with interviewing healthcare providers, deciphering medical research, and writing and editing health articles in an ...