Daily blue light shortens lifespan, causes brain neurodegeneration in Drosophila

Post by camgunz » Mon, Oct 21, 2019, 2:02 PM UTC

Fnoord wrote: post #67

camgunz wrote: post #13

I made a (what most people would consider terrible) vim color scheme that has no blue light in it (it's like an old amber terminal). Initially I thought I would hate it and switch back in a couple days/weeks, but I actually find it very nice, and switching to anything w/ blue light or a "normal color scheme" with blues and greens now weirdly feels like an assault. Feel free to give it a whirl: https://github.com/camg…

Those who want this look (or other retro looks) in a terminal [1] [1] https://github.com/Swordfish90/cool-retro-term

Post by Meerax » Mon, Oct 21, 2019, 4:19 PM UTC

ScottBurson wrote: post #60

Meerax wrote: post #59

Earlier quoted context omitted.

I thought that myopia was more of a genetic inherited trait than related to time spent indoors.

> Multiple factors are involved in the development of myopia [18]. Both genetics and the environment play a role in the development and progression of myopia. Many epidemiological surveys have shown that excessive close-up work, a high level of education, and participation in fewer outdoor activities were important environmental risk factors for myopia [9,19–24]. Genetic factors have been proven to play a significant…

Post by iyrkki_odyss » Mon, Oct 21, 2019, 6:43 PM UTC

hyperpallium wrote: post #20

camgunz wrote: post #13

I made a (what most people would consider terrible) vim color scheme that has no blue light in it (it's like an old amber terminal). Initially I thought I would hate it and switch back in a couple days/weeks, but I actually find it very nice, and switching to anything w/ blue light or a "normal color scheme" with blues and greens now weirdly feels like an assault. Feel free to give it a whirl: https://github.com/camg…

Installation instructions, for those with Drosophila-like memory (like me): $ md ~/.vim/colors $ cd ~/.vim/colors $ curl -LO https://github.com/camgunz/amber/raw/master/colors/amber.vim $ vim amber.vim in vim :colorscheme amber :set background=light :set background=dark I like the look of it, though the syntax highlighting isn't as distinguishing as default (for java). BTW: I code on a phone, and set the colour tempe…

Post by kortex » Tue, Oct 22, 2019, 1:42 AM UTC

JabavuAdams wrote: post #44

kortex wrote: post #25

Blue (and any high energy light) is known to facilitate radical formation, redox and other electronic transitions, hence "ionizing radiation". It breaks chemical bonds. Fruit flies are small enough to be translucent to visible light. It is not unreasonable to think that blue photons wreak chemical havoc in the bodies of small bugs, not unlike x-rays in mammals.

Blue light is not ionizing radiation. In fact, not even UV-C is ionizing. You have to get shorter-wavelength than UV to ionize. UV is harmful because it has enough energy to at least excite electrons to higher energy levels which can lead to, I think, changes in bond rotations, but not outright ionization. UV is clearly dangerous, but not because it ionizes. I'm not sure how the transparency argument is relative. You…

Post by kortex » Thu, Oct 24, 2019, 1:03 AM UTC

JabavuAdams wrote: post #89

kortex wrote: post #88

Earlier quoted context omitted.

I'm not confusing energy with intensity, but in a silly moment I got the word "photoionization" with photodissociation/photolysis. Yes, you need hard UV to actually eject an electron from its atom, but you need far far less energy to break bonds and damage DNA. Photosynthesis is all about redox driven by blue and red photons. These are more than just bond rotations (with only slim exceptions, bond rotations have the…

Thanks for the info! Apologies if I came across as patronizing. EDIT> cis/trans retinal -- should have remembered that