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What causes sudden onset psychosis in the elderly? Understanding the triggers for late-life mental changes

According to the National Institute of Mental Health, psychosis can be a symptom of conditions like Parkinson's disease, Alzheimer's, and related dementias, especially in older adults. This highlights that when asking "What causes sudden onset psychosis in the elderly?" the answer is often tied to underlying medical or neurological issues rather than a primary psychiatric illness. Recognizing these distinctions is crucial for proper diagnosis and effective treatment.