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Diurnal and Seasonal Mood Vary with Work, Sleep, and Daylength Across Diverse Cultures
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Diurnal and Seasonal Mood Vary with Work, Sleep, and Daylength Across Diverse Cultures
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Journal Article
Diurnal and Seasonal Mood Vary with Work, Sleep, and Daylength Across Diverse Cultures
2011
Overview
We identified individual-level diurnal and seasonal mood rhythms in cultures across the globe, using data from millions of public Twitter messages. We found that individuals awaken in a good mood that deteriorates as the day progresses—which is consistent with the effects of sleep and circadian rhythm—and that seasonal change in baseline positive affect varies with change in daylength. People are happier on weekends, but the morning peak in positive affect is delayed by 2 hours, which suggests that people awaken later on weekends.
