A physician in private practice in Melbourne, Florida, who moonlights as a stand-up comedian, introduces the challenge of weight loss as a stressful theme park ride. Dr. Rotenberg views laughter as a measure of attitude, with negative emotions and behaviors linked to factors that contribute to obesity. The guide includes lifestyle prescriptions made more palatable by humor (e.g., "dinosaurs refused to exercise and look what happened to them"), resources, further reading, and as forewarned, a quiz at the end. Annotation ©2010 Book News, Inc., Portland, OR (booknews.com)