Body Weight Regulation and Anorexia

According to data by the U.S. Centers for Disease Control, the United States has seen a dramatic increase in obesity with all states having 20% or more of their population being obese (U.S. Obesity Trends). On the other hand, it is estimated that 8 million Americans suffer from eating disorders such as anorexia and bulimia (Eating Disorder Statistics). These two observations point to the prevalence of body weight concerns in contemporary U.S. culture.  Given these facts, what light do scientific findings shed on the problem of body weight regulation?

Analyze the complex factors that contribute to body weight. You also assess the biological and cultural influences related to eating disorders.

With these thoughts in mind:

Describe how metabolic rate changes with caloric intake. Then describe at least four influences on body weight. Finally, explain how cultural influences might contribute to eating disorders.