Choose the best answer. 选择最佳答案。 People who diet may get lots of praise from friends and family when they start losing pounds, which makes them feel good. But eventually a person reaches a weight level—and doesn’t lose as much weight as before because the body is trying to keep a healthy weight, so they aren’t any happier. Some people may find it hard to control their eating, so they stick with an extreme diet for a little while, but then eat tons of food. Feeling guilty about the binge, they use laxatives (泻药). Eating too little to maintain a healthy weight or eating only to throw up the calories are both eating disorders, which are harmful to a person’s health.