What's Wrong With You?

Take a tour through your body and the many ways it can fail in  What's Wrong with You?   An Insider's Guide to Your Insides. Everybody has a body, and everybody gets sick. But unless you go to medical school, the mechanisms behind your medical symptoms remain a mystery. Why do you get diarrhoea when you’re stressed? Why do both teenagers and bodybuilders get acne? Why do you feel like yawning when you’re tired, nervous, or when you think about yawning (like now)? Why do many men go bal