Throw away your daylight balanced lights

[Steve Sherrick]

Blue light bad, 3000K good.

https://www.cnn.com/2018/04/27/health/artificial-blue-light-prostate-breast-cancer-study/index.html

 

[rand thompson]

Steve,


I wonder how much of all of the cancer Actors and Actresses are diagnosed with can be directly or indirectly contributed to the HMI lighting (usually 5600K) that they have been exposed to all of their careers.

 

[jordan levy]

i cant see for two days after i do an all HMI job

 

[Todd T]

It is not that blue light is causing cancer, it is that interruption of the normal sleep cycle and melatonin production is causing problems that link to cancer.

The big take-away is not how much light blue light you are exposed to, but how little blue light needed to cause problems. Staying up late on your computer or your phone is all it takes; larger sources of blue light do not correspondingly increase the problem.

Kind of like how leaning over and putting your face into water interrupts your breathing, doesn't matter if it's a sink, a lake, or an ocean; they all have the same effect.

 

[Todd T]

i cant see for two days after i do an all HMI job

That is more related to UV exposure, which is a whole nuther can 'o worms!

 

[Mark Phelan]

I'm not a fan of sodium vapor lighting, there's nothing natural or good about it. The photo comparison of the sixth street bridge would suggest that not only are the new LEDs better, they also make the night sky clearer. Wonder what the motivation is behind the study? Because it says men who slept in illuminated rooms had a higher degree of prostate cancer, while women had a lower degree of breast cancer. So men need a dark room and women need a lit room?

"Compared with those who reported sleeping in total darkness, men who slept in “quite illuminated” bedrooms had a higher risk of prostate cancer (OR=2.79; 95% CI: 1.55, 5.04), whereas women had a slightly lower risk of breast cancer (OR=0.77; 95% CI: 0.39, 1.51)."

Strange jump to conclusions.