Hypnic headache | definition of hypnic headache by Medical dictionary
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A headache that awakens a patient from sleep. Hypnic headaches are typically bilateral, and are experienced more often by the elderly than by other patients. Unlike cluster headaches, which also occur during rest or sleep, the hypnic headache is not felt on one side of the face, and not associated with tearing of the eye or painful congestion of the sinuses.
References in periodicals archive
Turtle Headache: A Case Report and Approach To Hypnic Headaches
Nociceptive blink reflex and pain related evoked potentials in hypnic headache
The mean number of days per month subjects were awakened because of hypnic headache
was 21 days, with 20% of subjects experiencing headaches lasting longer than 4 hours.
The hypnic headache
is not attributed to any other disorder; treatments include sleep rationing, lithium, caffeine, or indomethacin, Dr.