By cutting back on light exposure in the evening, teenagers participating in a study improved their sleep quality, concentration and mood. Researchers from the Amsterdam UMC hospital aimed to determine how detrimental blue light was to young people in their own homes. 'Here we show very simply that these sleep complaints can be easily reversed by minimising evening screen use or exposure to blue light. 'Based on our data, it is likely that adolescent sleep complaints and delayed sleep onset are at least partly mediated by blue light from screens.' With this study complete, the researchers are now moving to investigate whether minimising screen exposure to improve sleep has longer-lasting impacts.

Source: Daily Mail May 20, 2019 11:27 UTC