How is light related to circadian rhythm?
We have always needed natural sunlight, not only to see but also for our biological needs. We are always learning about how light waves from the sun affect our circadian rhythm, the body’s internal clock.
Natural sunlight helps our bodies to suppress the hormone melatonin. When the sun goes down, we start to produce melatonin which helps us to fall asleep.
How can Circadian Lighting help me to sleep?
The blue wavelength found naturally in sunlight, specifically 460 nm – 490 nm, suppresses the production of melatonin in the brain. This hormone helps us to fall asleep. This wavelength is commonly used to light up our homes and offices, and even our electronic devices. By removing this type of light from our evening routine, our bodies will naturally start to produce melatonin, thus allowing us to fall asleep naturally.