Restricted use of electronic media, sleep, performance, and mood in high school athletes--a randomized trial.

OBJECTIVES The study aims to evaluate whether 4 weeks with restricted use of electronic media after 22:00 affects sleep, athletic performance, cognitive performance, and mood in high school athletes. METHODS Eighty-five athletes were randomized to either an intervention group (n = 44), who was instructed to not use any electronic media after 22:00, or a… (More)