Summarize what is currently know about the role of genetics and neurophysiology in eating disorders

Answer:

Concordance rates for bulimia are higher for monozygotic twins than for dizygotic twins. However, the difference can be explained by several different heritable mechanisms. Eating disorders are unlikely to be directly inherited. Genetics may influence personality characteristic that lead to bulimia, or a certain body type or weight set point may be inherited. Genes clearly affect weight and body type, but we cannot mindlessly conclude that eating disorders are genetic without carefully considering genetic mechanisms and gene-environment interactions. In rare instances, a hormonal disturbance or a lesion in the hypothalamus has been linked to eating disorders.