Live data from Hacker News

Light exposure at night predicts incidence of cardiovascular diseases

medrxiv.org

21–30 of 116 posts

Re: Light exposure at night predicts incidence of cardiovascular diseases

#21

If the article had said regularly having to go to work before 9:00 a.m. predicts incidence of cardiovascular disease, would we be having the same conversation?

Good catch, although there are plenty of studies and even metastudies on that topic (eg https://pmc.ncbi.nlm.nih.gov/articles/PMC11129786/ ); generally speaking, the healthiest people are those who work "normal" day shifts with "normal" hours (full time; not part time; no overtime).

Re: Light exposure at night predicts incidence of cardiovascular diseases

#26
post #8

Sorry for exposing my personal medical data, but... I literally cannot fall asleep without at least some light. So I sleep with lights on. Trying to be like normal people would only make my overall health worse. Is this a medical condition that has a name?

Maybe they're exposed to light at night because they're awake at night more often, possibly shift workers, which we already know is unhealthy. I doubt just having light on is causing the effect.

Yes they tracked hours of light exposure (above some threshold? I don't see that they say.) and found this result in the 90-100th percentile. So almost certainly night shift workers.

Re: Light exposure at night predicts incidence of cardiovascular diseases

#28

Is this detecting people who work overnights?

I believe so yes. They tracked hours of light exposure at night over a week, and found this result in the 90-100th percentile. The 90th percentile here is pretty much going to be people working at night yeah.

Re: Light exposure at night predicts incidence of cardiovascular diseases

#29

Preprint not peer reviewed. Also: ”A.J.K.P. and S.W.C. are co-founders and co-directors of Circadian Health Innovations PTY LTD.” Lemme guess, looking for funding.

The best thing to do is to take commonly held knowledge and make a study out of it.

Maybe the next study could be “live king cobra in the bed results in sleep reduction”.

Probably a book and a TED talk to go with it.

Post reply on HN