10 MOST DANGEROUS SLEEP REIGN OF TERROR
The sleep patterns and sleep disorders of prehistoric man are unknown, and therefore we must speculate from the comparative physiology of animals and from evidence of other behaviors and illnesses. Although most sleep disorders have probably been present since man evolved, modern society has inadvertently produced several new disorders.
Delayed sleep phase syndrome: One of the circadian rhythm sleep disorders. It is characterized by sleep onset and wake times that are usually later than desired, with difficulty in initiating sleep onset. Once sleep onset does occur, sleep is of good quality, with few awakenings until the time of final awakening. This sleep pattern is mainly a difficulty in falling asleep at night, or a difficulty in awakening in the morning, which prevents fulfilling social or occupational obligations.
Delayed sleep phase syndrome was first described by Elliot D. Weitzman and Charles Czeisler in 1981. Their analysis of 450 patients who complained of insomnia showed that 7% fulfilled the criteria for having delayed sleep phase …show more content…
For example, a death in the family, an upcoming examination, marital, financial or work stress. Typically, adjustment sleep disorder lasts for a few days, and always less than three weeks, after which the sleep pattern returns to normal. Features of adjustment sleep disorder are prolonged sleep latency, frequent awakenings, or early morning arousal. There may also be a tendency for excessive sleepiness during the day. In acute circumstances, there can be loss of the ability to maintain normal social activities or employment until the acute reaction is over. Intense anxiety or depression may be associated with the stress response and the sleep disturbance. The sleep pattern returns to normal with the resolution of these acute psychological
The sleep patterns and sleep disorders of prehistoric man are unknown, and therefore we must speculate from the comparative physiology of animals and from evidence of other behaviors and illnesses. Although most sleep disorders have probably been present since man evolved, modern society has inadvertently produced several new disorders.
Delayed sleep phase syndrome: One of the circadian rhythm sleep disorders. It is characterized by sleep onset and wake times that are usually later than desired, with difficulty in initiating sleep onset. Once sleep onset does occur, sleep is of good quality, with few awakenings until the time of final awakening. This sleep pattern is mainly a difficulty in falling asleep at night, or a difficulty in awakening in the morning, which prevents fulfilling social or occupational obligations.
Delayed sleep phase syndrome was first described by Elliot D. Weitzman and Charles Czeisler in 1981. Their analysis of 450 patients who complained of insomnia showed that 7% fulfilled the criteria for having delayed sleep phase …show more content…
For example, a death in the family, an upcoming examination, marital, financial or work stress. Typically, adjustment sleep disorder lasts for a few days, and always less than three weeks, after which the sleep pattern returns to normal. Features of adjustment sleep disorder are prolonged sleep latency, frequent awakenings, or early morning arousal. There may also be a tendency for excessive sleepiness during the day. In acute circumstances, there can be loss of the ability to maintain normal social activities or employment until the acute reaction is over. Intense anxiety or depression may be associated with the stress response and the sleep disturbance. The sleep pattern returns to normal with the resolution of these acute psychological