A new study of undergraduate students found that individuals with attention-deficit/hyperactivity (ADHD) disorder were more likely to be evening types compared to individuals without this disorder. Furthermore, individuals with ADHD were more prone to exhibit depressive symptoms. This trend was especially pronounced among evening-type participants. The study was published in the Journal of Sleep Research. Circadian rhythms are natural, internal biological processes that follow a roughly 24-hour cycle. These rhythms regulate various physiological and behavioral patterns in living organisms, inc...
