Green light can reset your internal body clock, affect sleep
Related: Green light, internal body clock, reset, Sleep
You might want to think twice about the glasses that block blue light, which can be found online as an aid to better sleep. Research shows that green light is just as key in resetting the body’s clock.
The white light in our lives, whether from light bulbs or the sun, is a rainbow of colors from violet to red. Exposure to that full spectrum resets the body’s circadian clock, the rhythm that synchronizes our 24-hour cycle of alertness and sleepiness, along with hormones and other physiologic processes all timed to the sun.
Now scientists at the Brigham and Women’s Hospital in Boston have found that green light is just as good as blue light at regulating the circadian system. Subjects were exposed to blue or green light just as they began to secrete nocturnal melatonin. And researchers found that in dim light or for short periods of time, the green light was just as effective as blue light at regulating the circadian system. But for longer periods, the blue light had a greater effect.
Very interesting study. Hopefully they will delve deeper and we will learn more
Last Updated on May 13th, 2010
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