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What are some causes of Psychosis
Alcohol and certain illegal drugs, both during use and during withdrawal,
Brain tumors or cysts,
Dementia (including Alzheimer's disease),
Degenerative brain diseases, such as Parkinson's disease, Huntington's disease, and certain chromosomal disorders,
HIV and other infections that affect the brain,
Some prescription drugs, such as steroids and stimulants,
Some types of epilepsy,
Stroke