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Sleep disorders may lead to fatigue, exhaustion, somnolence, headache, anxiety, impaired concentration, confusion, cognitive disorders, difficulties in learning and increasing health problems. While sleep is organized by some complex mechanisms in hypothalamus and brain stem, many neurotransmitters such as serotonin, adenosine, histamine, hypocretin, norepinephrinegamma-aminobutyric acid, norepinephrine and epinephrine are involved in the process (1). In patients with primary headaches such as migraine and tension-type headaches, major depression and dysthymic disorders are seen more frequently

A Survey Study to Investigate the Relationship of Sleep Disorders, Depression and Anxiety in Headache Patients