An overvalued idea is an emotionally charged belief that may be held with sufficient conviction to make believer emotionally charged or aggressive but that fails to possess all three characteristics of delusion—most importantly, incongruity with cultural norms. Therefore, any strong, fixed, false, but culturally normative belief can be considered an "overvalued idea". Hypochondriasis is an overvalued idea that one is suffering from an illness, dysmorphophobia that a part of one's body is abnormal, and anorexia nervosa that one is overweight or fat.