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Are recalled childhood adversities associated with self-reported sleep quality? To find out, researchers sent a postal survey to 25,605 residents of Finland, collecting data on specific adversities experienced during childhood (parental divorce or separation, serious family conflicts, poverty, and family member illness or alcoholism). The reliability of respondents' answers was tested by a 5-year follow-up survey (with an average of 24,684 respondents for each question).
Among respondents, the more childhood adversities reported, especially poor parent–child relationships, the higher the likelihood of current sleep problems. Poor sleepers tended to have more problems with drinking, smoking, obesity, and physical inactivity. After adjustments…