Optimization

“Why do I get headaches after a nap?” Learn about sleep architecture, why naps aren’t always refreshing, and what you can do to wake up feeling better.

Discover sleep’s effect on athletic performance, why it’s crucial to get enough rest, and three big ways a lack of sleep impacts you physically.

You don’t have to abandon athleticism as you age. Learn how to pursue athletic performance and get into shape after 50 with these five tips.