Are you an expert on all things YOU? Do you know it all - from the purpose of your skin to safest way to treat a cold? Prove it! Take this quiz from Dr. Oz and Dr. Roizen's first book, YOU: The Owner's Manual, to test your BQ (Body Knowledge IQ.)
Excerpted from YOU: The Owner's Manual by Michael F. Roizen and Mehmet C. Oz. Excerpted with permission by HarperCollins Publishers.