<prompt> Risk factor for suicide is?Increased serotoninDrug abuseFemale sexMarried person  <response>: Ans. is b i.e., Drug abuse CausesRisk factors for suicideA. Psychiatric disorders: - Depression most common, alcoholism 2nd me, DrugSubstance dependence, Schizophrenia, Dementia.B. Physical illness: - Cancer, AIDS, Multiple sclerosis, Head trauma.C. Psychosocial factors: - Failure in love, marital difficulties, family dispute, illegitimate pregnancy.D. Biological factors: - Decrease in serotoninE. Other - Male sex, Age 40 years, Single Unmarried, divorced or widowed, previous suicide attempt, social isolation. 