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2. Respiratory disturbance index - Wikipedia

   en.wikipedia.org/wiki/Respiratory_disturbance_index

   The respiratory disturbance index (RDI)—or respiratory distress Index—is a formula used in reporting polysomnography (sleep study) findings. Like the apnea-hypopnea index (AHI), it reports on respiratory distress events during sleep, but unlike the AHI, it also includes respiratory-effort related arousals (RERAs). [ 1 ]

3. Excessive daytime sleepiness - Wikipedia

   en.wikipedia.org/wiki/Excessive_daytime_sleepiness

   Excessive daytime sleepiness (EDS) is characterized by persistent sleepiness and often a general lack of energy, ...

4. Hypersomnia - Wikipedia

   en.wikipedia.org/wiki/Hypersomnia

   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.

5. Sleep disorder - Wikipedia

   en.wikipedia.org/wiki/Sleep_disorder

   The most common sleep-related symptom of bipolar disorder is insomnia, in addition to hypersomnia, nightmares, poor sleep quality, OSA, extreme daytime sleepiness, etc. [27] Moreover, animal models have shown that sleep debt can induce episodes of bipolar mania in laboratory mice, but these models are still limited in their potential to explain ...

6. Upper airway resistance syndrome - Wikipedia

   en.wikipedia.org/wiki/Upper_Airway_Resistance...

   Upper airway resistance syndrome (UARS) is a sleep disorder characterized by the narrowing of the airway that can cause disruptions to sleep. [1] [2] The symptoms include unrefreshing sleep, fatigue, sleepiness, chronic insomnia, and difficulty concentrating. UARS can be diagnosed by polysomnograms capable of detecting Respiratory Effort ...

7. Alzheimer's disease - Wikipedia

   en.wikipedia.org/wiki/Alzheimer's

   Alzheimer's disease is associated with sleep disorders but the precise relationship is unclear. [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]