Скачать или смотреть What Is Advanced Sleep-Wake Phase Disorder?

Advanced sleep-wake phase disorder is a circadian rhythm disorder that causes someone to go to sleep earlier in the evening and wake earlier in the morning, compared to most people. This advance is typically two or more hours prior to the required or desired sleep times. For example, someone who desires to sleep from 10 PM to 6 AM may fall asleep by 8 PM and wake by 4 AM..
Individuals with this condition typically feel excessive sleepiness in the early evening and fall asleep early as a result. They may complain that they wake early in the morning and cannot get back to sleep, experiencing insomnia..
Example: Edith is a 78-year-old woman who often becomes sleepy around 7 p.m. and typically goes to bed by 8 p.m. She wakes up at 4 a.m. and cannot get back to sleep. She would prefer to sleep in until at least 6 a.m. and typically spends the first few hours of her mornings lying in bed awake..
In order to be diagnosed, symptoms must be present for at least 3 months. Importantly, the early morning awakening occurs even with a delay in the onset of sleep. Other causes of early morning awakenings, such as depression or sleep apnea, should be ruled out. Depression typically will not cause evening sleepiness, but untreated sleep apnea might..

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https://www.verywellhealth.com/advanc...