Dr. Jordan Metzl, a longevity and sports medicine doctor, runs home after work and strength trains in the park.

VO2 max is often referred to as a key marker of fitness. It’s the measure of the maximal amount of oxygen your cells can take ...

Obviously I’m doing things right—and working with a personal trainer has helped with that. To help you make the same gains, here are the six changes I made to my strength workouts, based on her advice ...

Lindsey Vonn shared an inspiring look at her recovery efforts after surgery for the injury she suffered at the Winter ...

We are all creatures of habit, tending to follow whatever routine seems the most doable. We forget that this scenario also applies to exercise, which can leave the body out of balance.

Walking is brilliant for your heart and mental health, but here's what happens when you rely on it for muscle, bones and long-term fitness.