Not to worry, Kmarts will all be gone soon.
Posted on 04/25/2018 8:09:04 PM PDT by Signalman
From the “law of unintended consequences” department comes this finding, suggesting that the push for eco-friendly energy savings may be doing more harm to us than good.
Study links night exposure to blue light with breast and prostate cancer
Researchers used images taken by astronauts to evaluate outdoor lighting in Madrid and Barcelona
A study performed by an international team led by the Barcelona Institute for Global Health (ISGlobal), a centre supported by the “la Caixa” Foundation, reports a link between exposure to blue light at night and higher risk of developing breast and prostate cancer. Blue light is a range of the visible light spectrum emitted by most white LEDs and many tablet and phone screens. The results have been published in Environmental Health Perspectives.
“WHO’s International Agency for Research on Cancer (IARC) has classified night shift work as probably carcinogenic to humans. There is evidence pointing to an association between exposure to artificial light at night, disruption of the circadian rhythm, and breast and prostate cancers. With this study we sought to determine whether night exposure to light in cities can affect the development of these two types of cancer”, explains Manolis Kogevinas, ISGlobal researcher and coordinator of the study. “We know that depending on its intensity and wave length, artificial light, particularly in the blue spectrum, can decrease melatonin production and secretion”, says Martin Aubé, physics professor at CÉGEP in Sherbrooke, Canada and study co-author.
The study was conducted within the framework of the MCC-Spain project cofunded by the ‘Consorcio de Investigación Biomédica en Red de Epidemiología y Salud Pública’ (CIBERESP), and includes medical and epidemiological data of more than 4,000 people between 20 and 85 years of age in 11 Spanish regions. Indoor exposure to artificial light was determined through personal questionnaires, while outdoor levels of artificial light were evaluated for Madrid and Barcelona, based on nocturnal images taken by astronauts aboard the International Space Station.
Results obtained for both cities show that participants exposed to higher levels of blue light had a 1.5 and 2-fold higher risk of developing breast and prostate cancer, respectively, as compared to the less-exposed population.
Ariadna García, ISGlobal researcher and first author of the study, says: “Given the ubiquity of artificial light at night, determining whether it increases or not the risk of cancer is a public health issue”. At this point, further studies should include more individual data using for instance light sensors that allow measuring indoor light levels. It would also be important to do this kind of research in young people that extensively use blue light emitting screens”.
“Currently, the images taken by the astronauts on the Space Station are our only way of determining the colour of outdoor lighting at a large scale, and the spread of blue light-emitting white LEDs in our cities”, comments Alejandro Sánchez de Miguel, scientist at the Astrophysics Institute in Andalucía-CSIC and Exeter University.
I put an adjustable LED above my shower, and when I turn it down low the hertz makes the water droplets look motionless and frozen in time, momentarily.
Does this include those stinking blue headlights that blind me?
Yes. Pineal gland: stimulated by full-spectrum daylight to produce melatonin, then release durint nighttime. Blue light interferes with circadian rhythm.
Lux can be downloaded for free on computer; it changes monitor to yellow shift at night.
I use full-spectrum bulbs during the day, red bulbs at night (like submarines do).
Not levels, but the release.
Failure to get enough real light (full spectrum, including blue) is what lowers levels.
It is likely that it isn’t so much the LED white light that contributes to cancer, but rather the lack of melatonin being produced by the body. Lack of light at night triggers the body to produce melatonin. If one is exposed to constant white light the body doesn’t produce adequate melatonin.
Melatonin has been proven to protect the body against getting cancer. It also helps with many other processes in the body. One can also supplement with it to get enough in the body to do what it does. It can help people get sleepy and fall asleep when they otherwise are trouble doing so.
I found some in the Dollar Tree. They have an online store.
100% in agreement. Hate fluorescent too. The blue-white LED color is 5000 Kelvin. The incandescent LED color is 2700K. After a still on going search for a good LED we went with that color. Although we use 3000K for task lighting.
CFL’s did, that’s for sure.
What a scam that was.
I think there will be a market for incandescents before long. Nothing beats it for both light, and heat.
By the by, what is up with GE stock? It’s chart looks like a wheelchair ramp.
Heh! I should have died several times over.
Been working 12-hour shifts switching from 6AM-6PM to 6PM-6AM every two weeks for the last 18 years.
The only reason I like nights better is simple: NO MANAGEMENT.
;-)
A very common observation and position about night shift.
Huh? I thought that was standard practice. I briefly worked in a three shift factory. I volunteered for 3rd shift; it paid better. I was told that up front at the interview.
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I’m sure we can get some bottomless government grants to decide whether we should worry about this. Is 15 years enough time to study it? We can always go longer...
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LOL ...... and I just bought a dozen of them.
;-)
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