Paul A. Offit, M.D., Author & Director of the Vaccine Education Center at the Children’s Hospital of Philadelphia, joins Dr. Roizen to talk about his new book Overkill: When Modern Medicine Goes Too Far. Most of us accept the same common medical wisdom: take your Vitamin C when you have a cold, baby aspirin can prevent heart attacks or strokes, ice those sprains, wear sunscreen. But how did we get these, and are they really doing what patients and medical practitioners alike believe?  Paul A. Offit, M.D., Author & Director of the Vaccine Education Center at the Children’s Hospital of Philadelphia, joins Dr. Roizen to answer these questions and talk about his new book Overkill: When Modern Medicine Goes Too Far. Want better health and nutrition? Now you can get personalized supplement recommendations and custom vitamin packs delivered to your door! Go to PersonaNutrition.com/Roizen and take your free assessment and get 50% off your order today. - sponsor   Bonus How Your Diet Affects Your Risk for Cancer