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What are different types of psychological diseases that you know?

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"Schizophrenia is a mental disorder that makes it difficult to tell the difference between real and unreal experiences, to think logically, to have normal emotional responses, and to behave normally in social situations."  Some of the symptoms are: flat affect, delusions, hallucinations, and disordered thinking.

Bipolar Disorder is a mood disorder characterized by alternating highs and low of mood.  Although its name has changed it is still known by many as manic depressive disorder.  Some of the symptoms are: depression, mania, poor temper control, reckless behavior, and difficulty concentrating.

Dissociative Identity Disorder has also been known as multiple personality disorder.  This disorder is marked by one person displaying multiple distinct identities and personalities.  Some of the symptoms are: memory loss, erratic behavior, multiple mannerisms, depression, and flashbacks.

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