Spotlight on Sleep and depression

Sleep disturbances are common in psychiatric disorders. The relationship between poor sleep and depression is well established. Epidemiologic data suggest that people with psychiatric disorders account for 30% to 40% of those in a community reporting symptoms of insomnia and that depression is the most common psychiatric cause of insomnia. Depression is associated with longer sleep latency, frequent and long awakenings, and early morning awakening associated with poor sleep satisfaction. Sleep disturbance associated with depression sometimes responds to treatment of the underlying depression. Some antidepressants, such as mirtazapine, directly improve sleep quality. Unfortunately, most antidepressants, including the selective serotonin reuptake inhibitors and duloxetine, have the side effect of insomnia. Adjunctive medication is often necessary to treat depression- or antidepressant-associated insomnia.

In this article, Dr. Federica Provini of the University of Bologna and IRCCS Institute of Neurological Sciences of Bologna discusses the evaluation and treatment of sleep disorders associated with depression.

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