"People with bulimia nervosa—even if their weight remains “normal”—can severely damage their bodies by binging and purging. Self-induced vomiting can injure the various parting of the body involved in eating and digesting food: tooth decay, esophageal and stomach injury, and acid reflux are all common in people with bulimia nervosa. Excessive purging behaviors can cause dehydration and changes in the body’s electrolytes (e.g., low potassium). This can lead to multiple problems including cardiac arrhythmias, heart failure and even death."