What organ of your body is a secret weapon in the fight against fatigue? Find out how to care for these organs -- and boost your energy naturally!

Learn how to get your best sleep and ensure you stay bright-eyed all day long. Click here to take Dr. Oz's Sleep Quiz. 

Animation produced by Visible Productions Inc.

Dr. Oz goes where he's never gone before. He's letting you eat fast-food and it's not what you expect. Learn which fast food meals you can eat under 500 calories while still enjoying the food you love.