[Solved] Which of the following is the number one underlying cause of preventable morbidity and mortality around the world? A) Obesity B) Poverty C) Tobacco use D) Alcohol abuse Gender Identity Disorder: An outdated term for what is now more commonly referred to as gender dysphoria, characterized by a significant discrepancy between an individual's experienced or expressed gender and the gender others would assign them. DSM: Diagnostic and Statistical Manual of Mental Disorders, a publication by the American Psychiatric Association outlining mental health disorders. Homosexuality: The romantic or sexual attraction or orientation toward members of the same sex. Voyeuristic Disorder: Disorder characterized by obtainment of sexual arousal by compulsively and secretly watching another person undressing, bathing, engaging in sex, or being naked.