What is the irresistible urge to perform a particular act over and over again?

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Compulsion is the irresistible urge to perform a particular act over and over again, often to alleviate anxiety or distress. Psychosis refers to a mental condition characterized by a loss of touch with reality. Obsession is a persistent, unwanted thought or idea that dominates one's thinking. Separation anxiety is a form of anxiety that occurs when an individual is separated from a person, place, or object that provides feelings of security or comfort.

What Is the Irresistible Urge to Perform a Particular Act