Men with big feet have big penises. You should drink at least eight glasses of water a day. Sugar makes kids hyper. Eating at night makes you fat. Chewing gum stays in your stomach for seven years. You lose 40% of your body heat through your head. Every day, you hear or think things about your body and health that are just not true. Maybe you saw them on TV, read them in magazines or heard them from friends (or even a doctor). This book is for anyone who has wondered about the truth behind these myths. Funny, wacky and full of fascinating facts, "Don't Swallow Your Gum" explains why so many of those weird and worrisome things we think about our bodies are mistaken. Cover illustration: Dermot Flynn.