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According to one meta-analysis of sleep disorders in children, confusional arousals and sleepwalking are the two most common sleep disorders among children. [62] An estimated 17.3% of kids between 3 and 13 years old experience confusional arousals. [62]
For many over 65, a night of undisturbed sleep is not an option. The causes are varied, including menopause and sleep apnea. See what might keep you up.
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.
An estimated 1–6% of children experience night terrors. Children of both sexes and all ethnic backgrounds are affected equally. [18] In children younger than three and a half years old, the peak frequency of night terrors is at least one episode per week (up to 3–4 in rare cases). Among older children, the peak frequency of night terrors is ...
Winter brings less daylight and colder temperatures, which can disrupt sleep. Seasonal Affective Disorder (SAD) is more common in winter due to the lack of sunlight, causing sleep disturbances.
Sleep terrors are mainly characterised by screaming, agitation, flushed face, sweating and only share the inconsolability with confusional arousals. [14] The current 3rd edition of the International Classification of Sleep Disorders (ICSD-3) added the sleep-related eating disorders in the disorders of arousal from NREM sleep. [16]
Sleep deprivation may represent a final common pathway in the genesis of mania, [152] and manic patients usually have a continuous reduced need for sleep. [153] The symptoms of sleep deprivation and those of schizophrenia are parallel, including those of positive and cognitive symptoms. [154]
Between 1972 and 2015, the average age of a new father in the U.S. rose from 27.4 to 30.9; men over 40 now account for 9% of new babies born and men over 50 nearly 1%.