"Raina wakes up one night with a terrible upset stomach. Her mom has one, too, so it's probably just a bug. Raina eventually returns to school, where she's dealing with the usual highs and lows: friends, not-friends, and classmates who think the school year is just one long gross-out session. It soon becomes clear that Raina's tummy trouble isn't going away... and it coincides with her worries about food, school, and changing friendships. What's going...

Examines the effects stess has on human health, summarizing the latest scientific findings about the role stress and emotional makeup play in diseases such as diabetes, irritable bowel syndrome, cancer, and arthritis.