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Color-Changing LEDs Could Reset the Circadian Rhythm - The Atlantic
Hints of positive impacts have emerged in Texas, too, where tunable LED systems have been installed in some elementary and middle-school classrooms in Carrollton, a northern suburb of Dallas. A September DOE report on the Carrollton systems suggested that the tunable LED system had improved the overall learning environment—though the DOE noted that empirically measuring the effects of the circadian lights was beyond the scope of the project. Back in Washington, entire schools—including two Renton high schools and a brand new middle school—now have circadian lighting, and initial data out of Lindbergh High School seemed to echo the findings in Texas: The school reported a double-digit rise in SAT test scores following installation of the tunable LEDs.