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Hypnic headache. Hypnic headaches are benign primary headaches that affect the elderly, with an average age of onset at 63 ± 11 years. [1] They are moderate, throbbing, bilateral or unilateral headaches that wake the sufferer from sleep once or multiple times a night. [2] They typically begin a few hours after sleep begins and can last from 15 ...
Idiopathic hypersomnia(IH) is a neurological disorder which is characterized primarily by excessive sleep and excessive daytime sleepiness (EDS). [ 1 ] Idiopathic hypersomnia was first described by Bedrich Roth in 1976, and it can be divided into two forms: polysymptomatic and monosymptomatic. [ 2 ][ 3 ] The condition typically becomes evident ...
In hemicrania continua, basal pain is a dull aching pressure similar to that of TTHs (Tension-Type Headaches) that occurs nearly always on the same side of the head and face. Pain ranges from mild to severe and is characterized by fluctuations that increase in intensity up to three to five times per 24-hour cycle.
The International Classification of Headache Disorders (ICHD) is a detailed hierarchical classification of all headache -related disorders published by the International Headache Society. [1] It is considered the official classification of headaches by the World Health Organization, and, in 1992, was incorporated into the 10th edition of their ...
Uncommon (understudied) Visual snow syndrome (VSS) is an uncommon neurological condition in which the primary symptom is that affected individuals see persistent flickering white, black, transparent, or colored dots across the whole visual field. [7][4] Other common symptoms are palinopsia, enhanced entoptic phenomena, photophobia, and tension ...
Shift work sleep disorder (SWSD) is a circadian rhythm sleep disorder characterized by insomnia, excessive sleepiness, or both affecting people whose work hours overlap with the typical sleep period. Insomnia can be the difficulty to fall asleep or to wake up before the individual has slept enough. [1] About 20% of the working population ...
Headache, also known as cephalalgia, is the symptom of pain in the face, head, or neck. It can occur as a migraine, tension-type headache, or cluster headache. [1][2] There is an increased risk of depression in those with severe headaches. [3] Headaches can occur as a result of many conditions. There are a number of different classification ...
The International Classification of Sleep Disorders (ICSD) is "a primary diagnostic, epidemiological and coding resource for clinicians and researchers in the field of sleep and sleep medicine". [1] The ICSD was produced by the American Academy of Sleep Medicine (AASM) in association with the European Sleep Research Society, the Japanese ...