Is 4 hours a week enough time to get you your dream body? Tim Ferriss thinks so. He’s challenging many traditional studies on weight loss. Learn more about his plan.  

Click here to read an excerpt from his book: The 4-Hour Body.


Click here to watch Part 1.

Click here to watch Part 2.

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.