Affects circadian rhythms, damages retinas: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4734149/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4734149/ Evening

Affects circadian rhythms, damages retinas: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4734149/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4734149/ Evening use of LED screens alters circadian rhythms and has a detrimental effect on cognitive performance: https://www.physiology.org/doi/full/10.1152/japplphysiol.00165.2011 https://www.physiology.org/doi/full/10.1152/japplphysiol.001... You can find more. Wikipedia has 40 citations here https://en.wikipedia.org/wiki/Effects_of_blue_light_technology https://en.wikipedia.org/wiki/Effects_of_blue_light_technolo... Your counterpoint is irrelevant. Non-artificiality isn't a guarantee of benefit: if you go outside in the daytime and look at the sun you'll go blind.