The purpose of this study is to assess patients treated with the antipsychotics aripiprazole (Abilify®), olanzapine (Zyprexa®), quetiapine (Seroquel®), risperidone (Risperdal®), or ziprasidone (Geodon®) and to identify genetic variations more commonly found in individuals who develop diabetic metabolic signs and symptoms, which include changes in blood lipids, blood glucose, blood pressure, and body weight.