Foundations of Behavior Genetics

Have you ever tried to lose weight? Many of us would like to weigh less than we do. On the other hand, some people struggle to gain weight. The topic of weight control is a stark reminder of the complex interplay between biology, psychology, and environment that has major implications for well-being. We may intend to change our weight by altering our behavior, but someone brings donuts, and we feel too tired to exercise after a long day of sitting at a desk. For many of us, it is all too easy to gain weight, and as we age it becomes increasingly difficult to lose it.