Impact of evening blue light exposure timing on sleep, motor, and cognitive performance in young athletes with intermediate chronotype.

Abstract in brief

• Sleep duration decreased significantly during later blue light exposure, and motor performance (like dart-throwing accuracy and movement speed) was impaired
• Cognitive functions such as selective attention also suffered during these times.
• Early evening blue light exposure (around 7:30-9:00 PM) had a smaller impact, causing only minor reductions in sleep duration and performance, indicating that the later the exposure, the more disruptive it is to sleep and physical-cognitive functions. - Overall, the timing of blue light exposure plays a crucial role in how it affects sleep, motor skills, and cognitive performance in adolescent athletes, with later exposure being more detrimental.]