This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
Suicide is most common in ? 
Select and explain. 
A. Depression, B. Alcohol dependence, C. Dementia, D. Schizophrenia
A: Depression
Answer: A: Depression 
Explanation: Ans. is 'a' i.e., Depression Causes/Risk factors for suicide Psychiatric disorders : - Depression (most common), alcoholism (2nd mc), Drug/Substance dependence, Schizophrenia, Dementia. Physical illness : - Cancer, AIDS, Multiple sclerosis, Head trauma. Psychosocial factors : - Failure in love, marital difficulties, family dispute, illegitimate pregnancy. Biological factors : - Decrease in serotonin Other - Male sex, Age > 40 years, Single (Unmarried, divorced or widowed), previous suicide attempt, social isolation.