In the biological approach, it is argued that there may be a genetic link to eating disorders. This makes sense as both anorexia and bulimia run in families. First-degree relatives of young women with anorexia are over 10 times more likely than average to develop the disorder (Strober et al, 2000). However, at this point in our understanding of anorexia, there is still no gene identified as definitively playing a role...