Sleep Science: In the Era of Screens, Rest Is Crucial

Cant currently look for a study, but IIRC the more in tune with your normal circadian rhythm the better - especially if you don’t need any alarm to wake up naturally.

I do recall hearing overnight workers have higher incidences of cancers, disorders, etc., and I’m curious to know if that holds true for people with naturally aberrant circadian rhythms.

I think they talk about it in "Why we sleep" by Matthew Walker, PhD.

Mostly about some people are biologically programmed to be night owl and other early bird.

The best sleep is not about what at what time you sleep but more if you follow what your biological cycle is telling you.

Melatonin (the "sleep hormone") production is/was linked to time through red light. If you're staring at a screen, you need* to use a blue color filter or supplement melatonin, same with going to sleep during the day.

* not really, most of the time the body can somehow manage, but if you're looking for quality sleep, or you have issues that you'd like to solve, you should look into it

It's the html header <title></title> entry.

Many (most?) big sites will try on different titles to see which one drives more traffic.

I can't say but I always feel happy when I have dreams, even weird ones. It leaves a deep trail of calm and inspiration (makes me want to draw, or make a story out of it).

Dreaming is how memories and skills are encoded in the brain. The second half of the night is more likely to involve encoding of physical skills like sports. Also more prone to nightmares.

Two things have substantially changed:

CRTs don't emit that daylight-like blue spectrum.

There is a diagram further down in the long article showing the different impact of different light sources on sleep.

Additionally, not mentioned in the article, social network streams are deliberately constructed to increase your online time, by being 'interesting'.

https://www.ted.com/talks/nir_eyal_what_makes_technology_so_...