IntroductionElevated bedtime psychophysiological activation interferes with the way people fall asleep and sleep. The falling asleep is an overlooked phenomenon, particularly relevant in the pathophysiology of insomnia. Insomnia disorder shows a profound sex difference in its prevalence, which emerges during adolescence. Greater vulnerability to insomnia in the female sex may be reflected in the manifestation of hyperarousal, particularly around sleep onset. Here, we compared the psychophysiology of the falling asleep process in adolescent boys and girls.
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