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Note that the study is self reported figure on sleep duration; quality of sleep is not measured. There have been many links between increased blue light and re

Note that the study is self reported figure on sleep duration; quality of sleep is not measured. There have been many links between increased blue light and reduced REM/restful sleep

themodelplumber 8y ago
Lately I find that I'm growing suspicious of this blue light link to sleep. Not in principle, just something in the way blue light has gained so much traction as a significant factor in sleep quality. Intuitively it feels off, or maybe over-magnified. I'd like to research it some more; do you know of any studies that are worth checking out?
- dorchadas 8y ago
  I think blue light is important, but I think addiction to phones is even more important. I have students who'll stay up late to answer messages, even though they use the modes that filter blue light. They just have to constantly be checking their phone...Now, if you couple that with blue light not being filtered, then you're facing even more problems.
ryanmercer 8y ago
>There have been many links between increased blue light and reduced REM/restful sleep The only decent study I know of about blue light and sleep, was done before the LEDs in phones/tablets/kindles even existed. Which means they were using more traditional light sources that were likely putting out an order of magnitude more luminosity. Everything that suggests tablets/phones/kindles interferes with sleep are woo-woo blogs trying to affiliate link sell you orange safety glasses and similar nonsense. If these devices ARE affecting sleep, it's likely the level of mental stimulation they are providing and the fact that when most people get into bed, they don't shut their mind off and instead start thinking about how Sally post pictures of her 13th fancy meal in her 13th country this month and how John's abs pop way more than theirs and it's just not fair because they count their macros and train and train and just can't get abs like that or they're mad that SniperLulz127 fragged them 4 times this evening in Overwatch Fortress 7 Call of Defeated Zombies.
- gowld 8y ago
  Comnputer light (which is white, including more blue than other light sources in a home) does interfere with sleep more than normal indoor bedroom lighting (which is usually red), but it does not cause blindness during the daytime. https://www.ncbi.nlm.nih.gov/pubmed/25535358 https://www.ncbi.nlm.nih.gov/pubmed/25535358 This shouldn't be suprising or controversial -- compare the color fo your idoor light to the color of the outdoor light at different times of day.

Note that the study is self reported figure on sleep duration; quality of sleep is not measured. There have been many links between increased blue light and reduced REM/restful sleep

themodelplumber 8y ago

Lately I find that I'm growing suspicious of this blue light link to sleep. Not in principle, just something in the way blue light has gained so much traction as a significant factor in sleep quality. Intuitively it feels off, or maybe over-magnified. I'd like to research it some more; do you know of any studies that are worth checking out?

dorchadas 8y ago
I think blue light is important, but I think addiction to phones is even more important. I have students who'll stay up late to answer messages, even though they use the modes that filter blue light. They just have to constantly be checking their phone...Now, if you couple that with blue light not being filtered, then you're facing even more problems.

ryanmercer 8y ago

>There have been many links between increased blue light and reduced REM/restful sleep The only decent study I know of about blue light and sleep, was done before the LEDs in phones/tablets/kindles even existed. Which means they were using more traditional light sources that were likely putting out an order of magnitude more luminosity. Everything that suggests tablets/phones/kindles interferes with sleep are woo-woo blogs trying to affiliate link sell you orange safety glasses and similar nonsense. If these devices ARE affecting sleep, it's likely the level of mental stimulation they are providing and the fact that when most people get into bed, they don't shut their mind off and instead start thinking about how Sally post pictures of her 13th fancy meal in her 13th country this month and how John's abs pop way more than theirs and it's just not fair because they count their macros and train and train and just can't get abs like that or they're mad that SniperLulz127 fragged them 4 times this evening in Overwatch Fortress 7 Call of Defeated Zombies.

gowld 8y ago
Comnputer light (which is white, including more blue than other light sources in a home) does interfere with sleep more than normal indoor bedroom lighting (which is usually red), but it does not cause blindness during the daytime. https://www.ncbi.nlm.nih.gov/pubmed/25535358 https://www.ncbi.nlm.nih.gov/pubmed/25535358 This shouldn't be suprising or controversial -- compare the color fo your idoor light to the color of the outdoor light at different times of day.