646416 external_news 1618326756 1618326756 It's what we should have told our middle school teachers when they caught us staring off into space in class: Daydreaming can be "a powerful mental health tool," according to this Popular Science story. The argument is backed up by a 2019 study led by School of Psychology researchers who noted that participants improved work performance and emotional states thanks to some mind wandering. 

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