Today's Trends in Lighting

Electric lighting, adolescent sleep and circadian outcomes, and recommendations for improving light health

“…In modern society, our exposure to sunlight is diminished such that we spend approximately 90% of our time indoors under low intensity light levels ( 4 , 5 ). With the post-industrial rise of inexpensive electric lighting ( 6 ), society is increasingly exposed to electric light across the day, evening, and beyond bedtime, with patterns, intensity, and spectra of light diverging from that of the natural 24-h light-dark cycle. This pattern of daytime and evening electric light exposure may disrupt circadian rhythms and sleep patterns.…”