Use stairs for 4×4 intervals to improve VO2 max and build aerobic fitness associated with a lower risk of early death.

This week, we explore the rise of AI fitness equipment and automated plans—and ask whether technology could eventually ...

Unless you have a specialized objective, getting stronger really is the closest thing to a fitness holy grail. It’s ...

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January is the month of the year when motivation to work out is at an all-time high. You've thrown out the holiday treats and are ready to get back on track with your health goals. For many, this ...

You're currently following this author! Want to unfollow? Unsubscribe via the link in your email. Excuse-proof your workout — a busy schedule or vacation doesn't have to derail your fitness, because ...

We tested 16 popular fitness trackers, watching as they counted calories, gathered sleep data and clocked our steps to find the best. Two emerged as our favorites.

On the most basic level, the best fitness trackers offer GPS connectivity to help you stay on your training course and basic activity tracking. Newer iterations of fitness trackers include advanced ...