Elementary school children who bully others or display aggressive behaviour are twice as likely to experience poor sleep, according to University of Michigan Medical School researchers.
The study found students with behavioural problems had a two-fold higher risk for symptoms of sleep-disordered breathing, particularly daytime sleepiness, than other students.
If sleepiness does contribute to aggressive behaviour, this study may provide a new way of addressing bullying in children.
Read more at University of Michigan