 Men often struggle with binge eating followed by excessive exercise while focusing on building muscle rather than losing fat, but this goal of gaining muscle is just as much an eating disorder as obsessing over thinness.The following statistics taken from Susan Nolen-Hoeksema's book, "(ab)normal psychology", show the estimated percentage of athletes that struggle with eating disorders based on the category of sport.Although most of these athletes develop eating disorders to keep their competitive edge, others use exercise as a way to maintain their weight and figure.