Learn how to promote and maintain healthy joints at any age with these healthy tips from Dr. Oz.
Worried about airport scanners? Dr. Oz weighs in on the radiation debate. Even your routine checkup could be dangerous. Find out why. Click here to track your exposure to radiation.
Click here to watch Part 2.
Click here to watch Part 3.
Click here to watch Part 4.
Animation produced by Visible Productions Inc.