What are the common sleep disorders?
Insomnia—Problems falling asleep or staying asleep, which can be the result of many different problems (e.g., medical problems, lifestyle, psychological problems, or poor sleep habits). Chronic insomnia is defined as sleep disturbance lasting longer than three weeks. Obstructive sleep apnea—A disorder characterized by loud snoring during the night, periods in which a person may stop breathing during the night, and significant daytime sleepiness. This disorder usually results when the person is lying on their back and the oropharynx (or airway) becomes partially obstructed. Obstructive sleep apnea may result in medical problems such as hypertension and heart problems. Periodic limb movement disorder—A disorder characterized by jerking or restless movements of the legs that are severe enough to disrupt sleep during the night.
