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Sleep apnea is the second most frequent cause of secondary hypersomnia, affecting up to 4% of middle-aged adults, mostly men. Upper airway resistance syndrome (UARS) is a clinical variant of sleep apnea that can also cause hypersomnia. [8] Just as other sleep disorders (like narcolepsy) can coexist with sleep apnea, the same is true for UARS.
Excessive daytime sleepiness, characterized by persistent sleepiness throughout the day and often a general lack of energy, even during the day after apparently adequate or even prolonged nighttime sleep. People with EDS nap repeatedly throughout the day and have strong urges to sleep while driving, working, eating, or conversing with others. [13]
It's suggested that idiopathic insomnia is a neurochemical problem in a part of the brain that controls the sleep-wake cycle, resulting in either under-active sleep signals or over-active wake signals. Sleep state misperception is diagnosed when people get enough sleep but inaccurately perceive that their sleep is insufficient. [128]
Middle-age and older people should sleep seven hours each night for ideal rest and recovery, according to a study published last week. The research, published in Nature Aging, studied nearly ...
The test is based on the idea that the sleepier people are, the faster they will fall asleep. [15] [16] The Maintenance of Wakefulness Test (MWT) is also used to quantitatively assess daytime sleepiness. This test is performed in a sleep diagnostic center. The test is similar to the MSLT as it also relies on a measurement of initial sleep latency.
Organic sleep disorder, nonorganic sleep disorder and as symptom of other diseases 1979 Nosology Clinical classification into four major groups: Disorder of initiating and maintaining sleep (DIMS) - Insomnias, Disorder of Excessive sleep (DOES) - Hypersomnias, Disorder of sleep-wake schedule (Circadian rhythm disorders) and Parasomnias 1980 ICD-CM
[176] [177] It was once thought that as people get older, the risk of developing sleep disorders and AD independently increase, but research suggests sleep disorders may be a risk factor for AD. [178] One theory is that the mechanisms to increase clearance of toxic substances, including Aβ, are active during sleep.
Idiopathic hypersomnia, a primary, neurologic cause of long-sleeping, sharing many similarities with narcolepsy. [83] Insomnia disorder (primary insomnia), chronic difficulty in falling asleep or maintaining sleep when no other cause is found for these symptoms. Insomnia can also be comorbid with or secondary to other disorders.