BUSTED: What are the top five preventive health myths?

You can get the flu – or worse — from a vaccine. Only old folks get strokes and heart attacks. Calories in, calories out. X-rays cause cancer. Sleep eight hours a night and drink eight glasses of water a day. Skip the sunscreen on a cloudy day. Take a multivitamin every day, just to be on the safe side. An apple a day keeps the doctor away. Exercise more to lose weight.