LIGHT
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Afternoon light may be key to fixing Teens' sleep
Knowledge-focused CompletedThis study tested whether bright light in the afternoon, alone or with morning light, can shift teens' internal body clocks earlier. 84 adolescents aged 18-20 followed a stable sleep schedule and then lived in a lab for a week. Researchers measured melatonin levels to track clock…
Matched conditions: LIGHT
Sponsor: Rush University Medical Center • Aim: Knowledge-focused
Last updated Sep 17, 2026 00:00 UTC
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Teens' sleep and light habits under the microscope
Knowledge-focused CompletedThis study looked at how lack of sleep and evening light exposure affect the body clocks of teenagers aged 14 to 17. Researchers used morning bright light to try to shift teens' sleep schedules earlier. They measured changes in melatonin levels and sleep patterns to understand wh…
Matched conditions: LIGHT
Sponsor: Rush University Medical Center • Aim: Knowledge-focused
Last updated Jun 26, 2026 13:19 UTC