6 ms·

LED backlight might. If no backlight probably fine.

Cthulhu_ 2y ago
Yeah but you need some light in order to read, and most lights are LED nowadays. That said, I have a Philips wake-up light that has a very pleasant yellow and dimmable light. I wonder what its frequency is though, some cheaper leds don't blink fast enough and especially when I'm tired it's noticeable. I just checked it with the slow-mo camera of my phone, my overhead lamps have a visible flickering, but the wake-up light has an interesting shuttering / interlacing effect, when I up the brightness (which increases brightness and shifts the light more to white) it seems to alternate between a white and orange light source. Might be multiple bulbs interlacing. Anyway, LED backlight shouldn't be a problem if it's not white light. Best to have some additional light in the room though, to reduce contrast / eye strain between the screen and the background.
kmarc 2y ago
What about yellow(ish) backlight? I switched to Kobo bc of that
- ywvcbk 2y ago
  No, only actually candlelight is fine. Ideally an open fire. However reading itself is unnatural so it can only lead to negative outcomes..
  - squigz 2y ago
    This is surely sarcastic, right?
  - portaouflop 2y ago
    I take it you you’re sarcastic but natural is dying at age twenty from a broken leg, miss me with natural living
    - OJFord 2y ago
      I know it's just an example, but it didn't take modern medicine for us not to die of broken legs at twenty. There's some risks sure, but the norm was presumably lying down and resting because it (especially doing anything else) bloody hurts, it gradually healing, and then varying degrees of hobbling for the rest of life because it healed without a splint. (And then it wouldn't be that surprising I don't think if we figured out splints long before anything you might call medicine.)
      - portaouflop 2y ago
        We didn’t need modern medicine to heal broken bones but for sure more than what was „naturally“ available. You can switch out broken bones for „being dragged from the campfire into the dark and devoured“ - another natural occurrence that I gladly live without
- squigz 2y ago
  IIRC, most of the evidence regarding screens before bed being detrimental were focused on the "blue light" thing, so a warmer light is probably better. (I think the science behind blue light being bad for us is still up for debate, but it's hard for me to ignore the amount of anecdata I've heard, including my own experience using flux and the like)
  - karma_fountain 2y ago
    Blue light has been shown to affect alertness in the evening in 13 young men here https://journals.physiology.org/doi/full/10.1152/japplphysiol.00165.2011 https://journals.physiology.org/doi/full/10.1152/japplphysio... Would be interested in studies refuting this.

Yeah but you need some light in order to read, and most lights are LED nowadays. That said, I have a Philips wake-up light that has a very pleasant yellow and dimmable light. I wonder what its frequency is though, some cheaper leds don't blink fast enough and especially when I'm tired it's noticeable. I just checked it with the slow-mo camera of my phone, my overhead lamps have a visible flickering, but the wake-up light has an interesting shuttering / interlacing effect, when I up the brightness (which increases brightness and shifts the light more to white) it seems to alternate between a white and orange light source. Might be multiple bulbs interlacing. Anyway, LED backlight shouldn't be a problem if it's not white light. Best to have some additional light in the room though, to reduce contrast / eye strain between the screen and the background.

kmarc 2y ago

What about yellow(ish) backlight? I switched to Kobo bc of that

ywvcbk 2y ago
No, only actually candlelight is fine. Ideally an open fire. However reading itself is unnatural so it can only lead to negative outcomes..
- squigz 2y ago
  This is surely sarcastic, right?
- portaouflop 2y ago
  I take it you you’re sarcastic but natural is dying at age twenty from a broken leg, miss me with natural living
  - OJFord 2y ago
    I know it's just an example, but it didn't take modern medicine for us not to die of broken legs at twenty. There's some risks sure, but the norm was presumably lying down and resting because it (especially doing anything else) bloody hurts, it gradually healing, and then varying degrees of hobbling for the rest of life because it healed without a splint. (And then it wouldn't be that surprising I don't think if we figured out splints long before anything you might call medicine.)
    - portaouflop 2y ago
      We didn’t need modern medicine to heal broken bones but for sure more than what was „naturally“ available. You can switch out broken bones for „being dragged from the campfire into the dark and devoured“ - another natural occurrence that I gladly live without
squigz 2y ago
IIRC, most of the evidence regarding screens before bed being detrimental were focused on the "blue light" thing, so a warmer light is probably better. (I think the science behind blue light being bad for us is still up for debate, but it's hard for me to ignore the amount of anecdata I've heard, including my own experience using flux and the like)
- karma_fountain 2y ago
  Blue light has been shown to affect alertness in the evening in 13 young men here https://journals.physiology.org/doi/full/10.1152/japplphysiol.00165.2011 https://journals.physiology.org/doi/full/10.1152/japplphysio... Would be interested in studies refuting this.