Differences in sleep functioning between individuals with seasonal affective disorder and major depressive disorder in Finland
Sleep problems are commonly reported in seasonal affective disorder (SAD) and major depressive disorder (MDD). However, the specific characteristics of sleep difficulties differ. Frequent sleep problems in MDD are insomnia and night awakenings, whereas SAD patients complain of hypersomnia and daytime sleepiness. No earlier studies have reported differences in sleep functioning between these two disorders.
Source: Sleep Medicine - Category: Sleep Medicine Authors: Isabel Morales-Mu ñoz, Seppo Koskinen, Timo Partonen Source Type: research
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