5 ms·

I'm shocked that they don't mention sitting in front of the computer or TV before bedtime. Computer monitors and TVs have a bluish light. Blue light down-regula

I'm shocked that they don't mention sitting in front of the computer or TV before bedtime. Computer monitors and TVs have a bluish light. Blue light down-regulates melatonin, which is the hormone that makes you sleepy. I used to have a serious acne problem. Cutting down on meat and dairy really helped, but I was still getting a few small pimples now and then after that. It was only when I stopped using my computer or TV late in the evening that I got 100% clear skin.

option_greek 11y ago
Does blue light affect the skin ?
- pennaMan 11y ago
  Yes, via melatonin http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1317110/ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1317110/
  - jensen123 11y ago
    I didn't know about that one. What made me suspect sleep was a few studies showing that a lack of sleep has a negative effect on various hormones: http://www.ncbi.nlm.nih.gov/pubmed/22844441 http://www.ncbi.nlm.nih.gov/pubmed/22844441 http://www.ncbi.nlm.nih.gov/pubmed/22787499 http://www.ncbi.nlm.nih.gov/pubmed/22787499 http://www.ncbi.nlm.nih.gov/pubmed/19955752 http://www.ncbi.nlm.nih.gov/pubmed/19955752 http://www.ncbi.nlm.nih.gov/pubmed/10543671 http://www.ncbi.nlm.nih.gov/pubmed/10543671 http://www.ncbi.nlm.nih.gov/pubmed/23078578 http://www.ncbi.nlm.nih.gov/pubmed/23078578 I found a couple studies on acne that mentions lack of sleep: http://www.ncbi.nlm.nih.gov/pubmed/18348416 http://www.ncbi.nlm.nih.gov/pubmed/18348416 http://www.ncbi.nlm.nih.gov/pubmed/21595660 http://www.ncbi.nlm.nih.gov/pubmed/21595660
  - rogeryu 11y ago
    Artificial blue light does not contain UV light, and does not influence melatonin.
    - jensen123 11y ago
      Doesn't matter whether the light is artificial or not. If the wavelength is about 470 nm (blue), it will suppress melatonin. There's been done many experiments/studies on this - here are a few: https://www.ncbi.nlm.nih.gov/pubmed/11763987 https://www.ncbi.nlm.nih.gov/pubmed/11763987 https://www.ncbi.nlm.nih.gov/pubmed/14962066 https://www.ncbi.nlm.nih.gov/pubmed/14962066 https://www.ncbi.nlm.nih.gov/pubmed/20463367 https://www.ncbi.nlm.nih.gov/pubmed/20463367 https://www.ncbi.nlm.nih.gov/pubmed/22850476 https://www.ncbi.nlm.nih.gov/pubmed/22850476 https://www.ncbi.nlm.nih.gov/pubmed/19444752 https://www.ncbi.nlm.nih.gov/pubmed/19444752 https://www.ncbi.nlm.nih.gov/pubmed/20652045 https://www.ncbi.nlm.nih.gov/pubmed/20652045
- cma 11y ago
  He maybe just woke up earlier and started spending more time in the sunlight, which definitely helps with acne.
malka 11y ago
You could also use F.Lux[0] wich dim the blue light of your screen at night [0] - https://justgetflux.com/ https://justgetflux.com/
- cheepin 11y ago
  In my experience f.lux is not enough to be confident in good sleep, I still have to turn off the electronics and dim the lights everywhere else for a bit before I go to bed.

option_greek 11y ago

Does blue light affect the skin ?

pennaMan 11y ago
Yes, via melatonin http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1317110/ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1317110/
- jensen123 11y ago
  I didn't know about that one. What made me suspect sleep was a few studies showing that a lack of sleep has a negative effect on various hormones: http://www.ncbi.nlm.nih.gov/pubmed/22844441 http://www.ncbi.nlm.nih.gov/pubmed/22844441 http://www.ncbi.nlm.nih.gov/pubmed/22787499 http://www.ncbi.nlm.nih.gov/pubmed/22787499 http://www.ncbi.nlm.nih.gov/pubmed/19955752 http://www.ncbi.nlm.nih.gov/pubmed/19955752 http://www.ncbi.nlm.nih.gov/pubmed/10543671 http://www.ncbi.nlm.nih.gov/pubmed/10543671 http://www.ncbi.nlm.nih.gov/pubmed/23078578 http://www.ncbi.nlm.nih.gov/pubmed/23078578 I found a couple studies on acne that mentions lack of sleep: http://www.ncbi.nlm.nih.gov/pubmed/18348416 http://www.ncbi.nlm.nih.gov/pubmed/18348416 http://www.ncbi.nlm.nih.gov/pubmed/21595660 http://www.ncbi.nlm.nih.gov/pubmed/21595660
- rogeryu 11y ago
  Artificial blue light does not contain UV light, and does not influence melatonin.
  - jensen123 11y ago
    Doesn't matter whether the light is artificial or not. If the wavelength is about 470 nm (blue), it will suppress melatonin. There's been done many experiments/studies on this - here are a few: https://www.ncbi.nlm.nih.gov/pubmed/11763987 https://www.ncbi.nlm.nih.gov/pubmed/11763987 https://www.ncbi.nlm.nih.gov/pubmed/14962066 https://www.ncbi.nlm.nih.gov/pubmed/14962066 https://www.ncbi.nlm.nih.gov/pubmed/20463367 https://www.ncbi.nlm.nih.gov/pubmed/20463367 https://www.ncbi.nlm.nih.gov/pubmed/22850476 https://www.ncbi.nlm.nih.gov/pubmed/22850476 https://www.ncbi.nlm.nih.gov/pubmed/19444752 https://www.ncbi.nlm.nih.gov/pubmed/19444752 https://www.ncbi.nlm.nih.gov/pubmed/20652045 https://www.ncbi.nlm.nih.gov/pubmed/20652045
cma 11y ago
He maybe just woke up earlier and started spending more time in the sunlight, which definitely helps with acne.

malka 11y ago

You could also use F.Lux[0] wich dim the blue light of your screen at night [0] - https://justgetflux.com/ https://justgetflux.com/

cheepin 11y ago
In my experience f.lux is not enough to be confident in good sleep, I still have to turn off the electronics and dim the lights everywhere else for a bit before I go to bed.