Your friend Valeria knows that exercising can help burn calories and lose weight. However, since she is not interested in burning calories or losing weight, she tells you that people like her should not exercise. “It’s a waste of time,” she says. “Unless you want to lose weight, there is really no point in exercising.” You disagree with Valeria. Convince her that there are many positive effects to physical exercise by listing as many benefits as you can.