Scientists mix sky's splendid hues to reset circadian clocks

Those mesmerizing blue and orange hues in the sky at the start and end of a sunny day might have an essential role in setting humans' internal clocks. A novel LED light that emits alternating wavelengths of orange and blue outpaced two other light devices in advancing melatonin levels in a small group of study participants. The finding appears to establish a new benchmark in humans' ability to influence their circadian rhythms, and reflects an effective new approach to counteract seasonal affective disorder (SAD).

Those mesmerizing blue and orange hues in the sky at the start and end of a sunny day might have an essential role in setting humans' internal clocks. A novel LED light that emits alternating wavelengths of orange and blue outpaced two other light devices in advancing melatonin levels in a small group of study participants. The finding appears to establish a new benchmark in humans' ability to influence their circadian rhythms, and reflects an effective new approach to counteract seasonal affective disorder (SAD).

Read more https://www.sciencedaily.com/releases/2024/09/240916115544.htm