Nymphomania is a mental disorder marked by compulsive sexual behavior. Compulsions are unwanted actions, or rituals, that a person engages in repeatedly without getting pleasure from them or being able to control them. In the case of nymphomania, people act out their compulsions by engaging in risky behaviors such as promiscuity. Whether or not nymphomania qualifies as a true mental illness is often debated in the medical community, but evidence suggests that compulsive sexual behavior is a real and serious illness. Nymphomania can happen to any adult, though it is thought that it may be more common in women and homosexual men. Technically, the term βnymphomaniacβ refers to a woman, though that definition has expanded to include anyone who engages in risky compulsive sexual behavior. In addition to compulsive sexual behavior, nymphomania may include problems thinking, unwanted repetitive thoughts (obsession), and feelings of guilt, shame or inadequacy.