When your body's gastrointestinal tract isnt functioning correctly, poop colors can tell you whats going on in your insides and whether you might have bowel problems. More
Which vitamins do you really need to take? What foods can supercharge your energy? What fitness trends are smart, or silly? When is medical news really urgent, or overhyped? Find out from the straight-talking YOU Docs, who answer today's trickiest health questions. More
Michael F. Roizen, MD, is cofounder of RealAge, chief wellness officer at the Cleveland Clinic, and chairman of the RealAge Scientific Advisory Board. More
Mehmet C. Oz, MD, is a member of the RealAge Scientific Advisory Board and vice chairman of cardiovascular services, Department of Surgery, Columbia University Medical Center. More