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Comment by r00fus | Hacker News Reader

It's important to remember that late night LED screen usage (and overall usage of high-contrast displays like in tablets and phones) prevents generation of melatonin which promotes sleepiness.

It's great that iOS/macOS now have night shift (and I've been loving F.lux for years), but it would be intersting to see how sleep patterns have been impacted by overall tech adoption.

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I travel regularly to tribal places! Some of them dont have electricity and they sleep at around 8pm and wake up early at 5 am. But the people who go to cities and come back sleep really late! The shift has been very dramatic and the more technology is adopted there seems to be an increase in discontent in an otherwise peaceful life.

On a side note: Earlier the tribals used to negotiate when there was a fight or crime,But once the police station opened the people seem to netgotiate less and use a third party to resolve the issue

As a side note, here's f.lux's response to night shift: https://forum.justgetflux.com/topic/3655/f-lux-vs-night-shif...

Yep. And we all have different levels of sensitivity to blue light. I'm super sensitive, so if I'm doing anything on screens at night it pretty much completely shuts down my melatonin production. If I'm coding, working, reading, or watching something on a device I literally won't become sleepy. And when I do go to bed I'll lay there for a long time before I can fall asleep.

Bottom line is that in order to go to sleep and get 8 hours, I have to be avoid device usage at night.

With the Creators update, Windows now includes a blue light filter too.

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