Diane is constantly concerned about things at work even when she is at home. she is constantly worried about her home life even when she is at work. diane's free-floating anxiety leaves her tense and irritable, impairs her concentration, and results in many sleepless nights. diane suffers from a(n)

Generalized anxiety disorder.

Explanation:

Anxiety disorders are the most common of mental disorders and they involve excessive worry, fear and anxiety. A person experiences anxiety when he/she anticipates a future concern. Anxiety involves muscle tension. Fear is experienced by an individual when he/she believes that there is an immediate threat that will cause him/her harm.

Anxiety disorders may lead to bad performance at work, school or home and may result in bad personal relationships.

There are several types of anxiety disorders including panic disorder, specific phobias, agoraphobia, among others.  

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