Bulimia nervosa, commonly referred to as “bulimia,” is an eating disorder characterized by episodes of eating that feel out of control (binge eating) and purging (compensating to get rid of the extra calories from food). Bulimia differentiates from binge eating disorder (BED) when consistent purging episodes occur. The binge-purge cycle can happen anywhere from several times per month to several times daily. The latest version of the Diagnostic Statistical Manual, the DSM-5, classifies bulimia when binging and purging occur once weekly for three months. Bulimia is thought to occur in 1.5% of the female population and .5% of the male population. This means that about 6 million people will suffer from this eating disorder throughout their lifetimes.