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Non-24-hour sleep–wake disorder causes a person's sleep–wake cycle to move around the clock every day, to a degree dependent on the length of the cycle. This is known as free-running sleep. [citation needed] People with the disorder may have an especially hard time adjusting to changes in "regular" sleep–wake cycles, such as vacations ...
Hypersomnia is a pathological state characterized by a lack of alertness during the waking episodes of the day. [ 3] It is not to be confused with fatigue, which is a normal physiological state. [ 4] Daytime sleepiness appears most commonly during situations where little interaction is needed. [ 5]
The sleep cycle is an oscillation between the slow-wave and REM (paradoxical) phases of sleep. It is sometimes called the ultradian sleep cycle, sleep–dream cycle, or REM-NREM cycle, to distinguish it from the circadian alternation between sleep and wakefulness. In humans, this cycle takes 70 to 110 minutes (90 ± 20 minutes). [1]
Vueling S.A. ( / ˈvwɛ.lɪŋ /, VWE-ling) is a Spanish low-cost airline based at Viladecans in Greater Barcelona with hubs at Barcelona–El Prat Airport (main), Paris-Orly Airport in Paris, France, Amsterdam Schiphol Airport in Amsterdam, The Netherlands and Leonardo da Vinci–Fiumicino Airport in Rome, Italy (secondary).
Effects of sleep deprivation on cognitive performance. The effects of sleep deprivation on cognitive performance are a broad range of impairments resulting from inadequate sleep, impacting attention, executive function and memory. An estimated 20% of adults or more have some form of sleep deprivation. [1] It may come with insomnia or major ...
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Cognitive behavioral therapy, caffeine (to induce alertness), sleeping pills. Sleep deprivation, also known as sleep insufficiency [2] or sleeplessness, is the condition of not having adequate duration and/or quality of sleep to support decent alertness, performance, and health. It can be either chronic or acute and may vary widely in severity.
Sleep apnea is a sleep-related breathing disorder in which repetitive pauses in breathing, periods of shallow breathing, or collapse of the upper airway during sleep results in poor ventilation and sleep disruption. [10] [11] Each pause in breathing can last for a few seconds to a few minutes and occurs many times a night. [1]
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