The National Institute of Mental Health (NIMH) provides this definition for eating disorders: "serious medical illnesses marked by severe disturbances to a person’s eating behaviors." NIMH states that anyone can suffer from an eating disorder, regardless of age, body weight, ethnic or racial background, or gender. or more information about Cottonwood Tucson, eating disorder treatment in Tucson, Arizona, call (888) 727-0441. We are ready to help you or your loved one find lasting recovery.