Sleep

- Sleep -

Sleep It Off

New research shows that sleep significantly influences metabolism, appetite, and weight management. Could getting more shuteye help you ward off excess pounds?

- Sleep -

Light Rhythms

How and when we are exposed to light can affect our bodies in some surprising (and not always beneficial) ways. Here’s what you need to know about your body’s built-in responses to cycles of light and dark — and how you can make the most of them for better health.

- Sleep -

Energy Crisis

Is your body experiencing an energy shortage? Learn how your system creates and uses energy and you’ll have a better shot at ramping up production to meet demand.

- Sleep -

Getting to Sleep

It’s the first thing to go when we’re stressed. It’s the last thing we get when we’re busy. But not sleeping enough can lead our bodies into big trouble. Want to be fit and healthy? Find out why your shuteye should be a top priority.