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Light exposure at night predicts incidence of cardiovascular diseases

medrxiv.org

31–40 of 116 posts

Re: Light exposure at night predicts incidence of cardiovascular diseases

#32

Earlier quoted context omitted.

Do you have to turn the light on to use the toilet?

Gotta look for large spiders under the seat.

In HK village houses the spiders are outside ... we look for snakes swimming up from septic tanks (yes they are still used even in some new village houses) or coming through bath drain that goes to outside drain (yes still a thing).

Re: Light exposure at night predicts incidence of cardiovascular diseases

#33
Several comments here mentioned shift work as a possible explanation.

The paper concedes that shift work is unhealthy[1] but claims that shift work doesn't explain their finding[2]. And their conclusion is "avoiding night light may be a promising approach for preventing cardiovascular diseases," but without telling us why. It's going to be fascinating if there's a mechanism by which sleeping with light can cause heart disease.

[1] "Evidence demonstrates higher risks of adverse cardiovascular events, coronary heart disease, heart failure, atrial fibrillation, and mortality due to cardiovascular disease in rotating shift workers."

[2] "Following separate adjustments for pre-existing diabetes, hypertension, high BMI, high cholesterol ratio, short, long, or inefficient sleep, and exclusion of shift workers, the relationships of night light with cardiovascular risks were attenuated but remained statistically significant for all outcomes except stroke."

Re: Light exposure at night predicts incidence of cardiovascular diseases

#34
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 got one of those lights that slowly dim to simulate sunset. You can fall asleep in the light, but it will be dark while you sleep. I have 2 Philips branded ones that have worked well for 11 years now.

Re: Light exposure at night predicts incidence of cardiovascular diseases

#37
post #9
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?

does it make a difference if it's warm or blue light?

I think it doesn't make any difference. Back in Russia, I used 2700K or 3000K LEDs. Here in the Philippines, high-CRI warm-color LEDs are unobtainable, and the culture exhibits a nearly-universal shift to 6500K indoor lights (unlike in Europe), so I use 6500K, just like everyone else here. It still works.

Re: Light exposure at night predicts incidence of cardiovascular diseases

#39

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.

What can we do about the tendency of research articles to get their big flash of publicity before undergoing peer review?

We need to make it a lot cooler for researchers to not do original research all the time but to do replication and peer review. We should also demand publication of failures -- it's ok to fail, but only if you publish about the failure.

The whole publish-or-perish culture is a disaster that incentivizes cheating.

It should be considered just as valuable to have a few grad students working on replication as on original research, and that should not hurt the students' prospects.

Re: Light exposure at night predicts incidence of cardiovascular diseases

#40
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?

Vampirism.
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