You know that friend who seems to eat pizza and stay skinny while you gain weight just looking at carbs? The same thing happens with exercise. I have a buddy who can knock out 200 push-ups and burn ...

Proper fueling for your fitness routine is essential to ensure you’re balancing out the energy you expend and making the most of your workout gains.

Look, I’m gonna be straight with you – those online calculators that tell you exactly how many jumping jacks you need to burn 500 calories? They’re basically making educated guesses about your body.

Think your marathon burned exactly 2,600 calories? Your body is way more complicated than that simple math suggests – it actually burns calories in three distinct phases, with the biggest shift ...

After a long day, there's no better feeling than hopping into bed and going to sleep. It’s a time to rest (obviously), but there’s actually a lot that happens in your body while you snooze. Beyond ...