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Blue light and sleep patterns:
Research has found that exposure to blue light suppresses the production of melatonin more than any other type of light. The evidence indicates that the shorter wavelengths in blue light are what causes the body to produce less melatonin because the body is more sensitive to this type of light.
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It's why on night operations in the army you use red light when you don't want to be seen because the brain easily dismisses it or blue light when you are trying to get people's attention. This same juxtaposition is useful for cop cars as it really accentuates the blue at night time.
BenBattersby
Level 4
Apr 28, 2018
1
Wow.... we changed our motion light from blue to orange.
BucketlistBob
Level 8
Apr 28, 2018
2
thank you for the reminder, Paul. since having had the new windows installed i kept having trouble sleeping - thought it's the moon 
just checked my 'night light' feature, & lo & behold! it was off. remedied that instantly.
walklightly
Level 8
Apr 28, 2018
1
I agree, and this study has been out there for a few years now, and I think more people are finally catching on.
SpikeTalon
Level 9
Apr 28, 2018
2
Yes I heard about that. I'm very good at sleeping 
girlwithsmiles
Level 8
Apr 28, 2018
2
Apple I-phone has a “Nightshift” feature that automatically filters out blue light from dusk till dawn or other preselected time.
Markus
Level 7
Apr 28, 2018
0
I use that feature. I like to watch streaming shows on my laptop before falling asleep, and I changed the color tone on my laptop too. I'm not sure if it's helping or not. I have some sleep issues...
I always have my red filter on the phone 24/7 !!!
Nickbeee
Level 8
Apr 28, 2018
2
All good there fellow tech enthusiast.
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