blue light associated with prostate and breast cancer

[teacher]

Blue Light Is Not the Only Culprit It Seems…
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.

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Part of the problem…

[clemence]

So….as I said (somewhere). The root of the problem is all the artificial lights we created, NOT only the blue light.
Use just enough light at night, sleep in the dark, limit night gadgeting.

I’ve seen many under developed villages in my country. Almost complete darkness in the whole village from 18:00 o’clock, no other than wood/kerosene fire at night. When it’s dark they stop their outside activities, sleeping or making babies. Yet their average life expectancy is below 50 y.o. Much lower than in the Canada or US, countries with almost no dark nights. There are more important factors outside blue light hazard.

What’s more concerning is the lights we created outside our buildings. Those light ruin our non human brother and sister.

[Clemence]

[teacher]

@clemence

So….as I said (somewhere). The root of the problem is all the artificial lights we created, NOT only the blue light.
Use just enough light at night, sleep in the dark, limit night gadgeting.

I’ve seen many under developed villages in my country. Almost complete darkness in the whole village from 18:00 o’clock, no other than wood/kerosene fire at night. When it’s dark they stop their outside activities, sleeping or making babies. Yet their average life expectancy is below 50 y.o. Much lower than in the Canada or US, countries with almost no dark nights. There are more important factors outside blue light hazard.

What’s more concerning is the lights we created outside our buildings. Those light ruin our non human brother and sister.

[Clemence]

Personally, I agree with you completely. :+1:

[Scallywag]

@Tally-ho

Yes, this is a known effect which is measured and light sources can be ranked by impact on ipRGC (melanopic function). See below a list of light sources with different CCT, blue %age and their relative melanopic potential : !{width:100%}https://i.imgur.com/9gCxXFX.jpg! (“Source”:https://www.energy.gov/sites/prod/files/2016/11/f34/royer_spectral-power-dist_denver2016.pdf)

Thanks for that chart!

As for the rest of the thread:

Avoid blue light when you go to bed, for a while before bed, and during your "night". Like I said, I have blackout curtains, so despite living near a very brightly, LED-lit area that would otherwise significantly intrude into my home, I receive nearly zero outside light at night.

The biggest thing people should take away from this isn't blue light, but sleep. Sleep is incredibly important, and having a good sleep cycle is critical for your health. Not getting enough good sleep will affect you long-term. There's a lot of studies to support that in a lot of different ways.

[clemence]

@Scallywag

@Tally-ho

Yes, this is a known effect which is measured and light sources can be ranked by impact on ipRGC (melanopic function). See below a list of light sources with different CCT, blue %age and their relative melanopic potential : (Source)

Thanks for that chart!

As for the rest of the thread:

Avoid blue light when you go to bed, for a while before bed, and during your “night”. Like I said, I have blackout curtains, so despite living near a very brightly, LED-lit area that would otherwise significantly intrude into my home, I receive nearly zero outside light at night.

The biggest thing people should take away from this isn’t blue light, but sleep. Sleep is incredibly important, and having a good sleep cycle is critical for your health. Not getting enough good sleep will affect you long-term. There’s a lot of studies to support that in a lot of different ways.

Agree! Without proper sleep you don’t have time to regenerate your broken cells. I wish I could also regenerate my telomeres

[Clemence]

[teacher]

@clemence

@Scallywag

The biggest thing people should take away from this isn’t blue light, but sleep. Sleep is incredibly important, and having a good sleep cycle is critical for your health. Not getting enough good sleep will affect you long-term. There’s a lot of studies to support that in a lot of different ways.

Agree! Without proper sleep you don’t have time to regenerate your broken cells. I wish I could also regenerate my telomeres

[Clemence]

+1 . Quality sleep is essential! . :+1:

As far as “telomeres” go, check out the article below. You probably already know all this…… but it sure can’t hurt.

How to Lengthen Your Telomeres & Unlock the Key to Longevity

[clemence]

Thanks, yup I knew most of the practices but still a useful link for easy sharing

[Clemence]

[teacher]

@clemence

Thanks, yup I knew most of the practices but still a useful link for easy sharing

[Clemence]

Your welcome.

[hank]

To quote the web page of “Doctor” (not a MD) Axe :

All readers/viewers of this content are advised to consult their doctors or qualified health professionals regarding specific health questions.

And an earlier caution:

Be careful about reading health books. You may die of a misprint.

— Mark Twain

Or you may die of alternative medical facts, as Steve Jobs did recently.

[teacher]

Kinda like reading much of the mumbo jumbo in this thread……

[hank]

http://budgetlightforum.com/flag/unflag/subscription_subscribed/60219?destination=node/60219&token=rhhY3vLLJeeB3OHl7f1XvRrGG4olHFKvqH2SFfm6rOA

[BurningPlayd0h]

@teacher

@BurningPlayd0h

@pinkpanda3310

More likely the lack of exercise is the reason which totally gets ignored because it’s too hard.

FYI that’s completely untrue. Reducing caloric intake by even a small amount is equivalent to a huge amount of exercise.

Please clarify. Are you referring to this in relation to losing weight??

Because as far as I know “reducing caloric intake” has no effect on building cardio strength or the other benefits of exercise.

TIA

Yup, I just meant as far as excess fat gain/loss. Not being obese/overweight has it’s own intrinsic health benefits, especially cardiovascular too of course. It takes FAR less time and effort to get enough exercise for those other benefits than it does for weight loss as well: “It is recommended that you exercise within 55 to 85 percent of your maximum heart rate for at least 20 to 30 minutes to get the best results from aerobic exercise.” Burning a decent amount of calories could take MUCH longer depending on the form of exercise.

@pinkpanda3310

@BurningPlayd0h

@pinkpanda3310

More likely the lack of exercise is the reason which totally gets ignored because it’s too hard.

FYI that’s completely untrue. Reducing caloric intake by even a small amount is equivalent to a huge amount of exercise.

You’re missing the point I was trying to make. Let’s delete the exercise part of what I wrote (because obviously it’s too hard :person_facepalming: ) If one *is overweight and consuming too much *are you going to entirely blame it on the occasional burger and chips???

@jon_slider

… or, am I reading something into it that was not there?

Nope

If you’re consuming too many daily calories a “occasional burger and chips” ISN’T occasional, that’s the whole point. Your caloric intake is higher than what you burn during the day. It is true that a single meal, or even a few days worth of eating won’t cause huge changes for any person of decent health though.

What I was getting at is a very small calorie intake can defeat the weight loss benefits of a looootttt of exercise. It takes a huge amount of time and effort to burn calories, and if you are having a daily calorie surplus no amount of exercise will prevent weight gain or lead to weight loss. You’re quite simply putting in more than you’re using. 10 - 2 + 3 = 11

[pinkpanda3310 (Pinky)]

[Sari33]

@teacher

@clemence

@Scallywag

The biggest thing people should take away from this isn’t blue light, but sleep. Sleep is incredibly important, and having a good sleep cycle is critical for your health. Not getting enough good sleep will affect you long-term. There’s a lot of studies to support that in a lot of different ways.

Agree! Without proper sleep you don’t have time to regenerate your broken cells. I wish I could also regenerate my telomeres

[Clemence]

+1 . Quality sleep is essential! . :+1:

As far as “telomeres” go, check out the article below. You probably already know all this…… but it sure can’t hurt.

How to Lengthen Your Telomeres & Unlock the Key to Longevity

For sure Neutral and cool white Leds are responsable for melatonine supression and wake up more than others lights types.They should be ban on night.
It’ very bad for healt alter byorithms.There not be any artificial light after Sunset for a good sleep,just Orange monochrome are more tollerate.But you know the buisness of Leds…

[Rusty_Joe]

The idea that blue light disrupts sleep and/or causes cancer is bogus. I know it’s fun to get off on the statistical stuff, but it’s nonsense. The same people say that Splenda causes cancer. Utter nonsense. More fear-mongering. We humans need an enemy!

[SKV89]

There has been plenty of reputable sources that say exposure to blue light at night time increases risk of cancer.

For me, after years of experimenting with ceiling bouncing flashlights at night time, I can confidently say CW keeps me awake and alert much more than WW lights. I currently use the E21A 2200K for ceiling bounce while watching TV before bed and I get sleepy pretty quickly. Using a CW or even NW 4000k light keeps me awake.

[Unheard]

@pinkpanda3310

At the bottom of the first paragraph “Researchers found that night shift work links to breast cancer because it can change a person’s sleep-wake cycle. This has a lot to do with artificial light.”

This Theory was proposed in 1987 already. Later a study found blind nurses had a smaller chance for breast cancer. It was found, yellow and red light had the least effect on melatonin.

But … is there any country in the world that took measures to protect their nurses? What’s the situation now, 33 years later? And what’s with night shifts in general? What about DST, enforcing artificial light early (e.g. for school students) and, for some, leading to an extended period of daylight when workers and pupils should rather sleep?

Do we, as a society, voluntarily ignore the results?

[jon_slider]

@SKV89

CW keeps me awake and alert much more than WW lights.

same here
I use warm lights to relax and cooler lights as worklights

I recently started learning about the use of Red Light for physical therapy … fun stuff!

[Lightbringer]

Not to sound like a shill, but I got (and reviewed ) a LITOM floor-lamp with brightness and color-temp settings, and its warmest setting is 1800K (!!) touting 99.4% blocking of blue light. I can’t possibly measure that, but I’ll assume it’s correct.

https://www.amazon.com/dp/B089NK1SRV/

Other than wishing it came in white or even brown “woodgrain” as an option, it’s quite nice.

And it has a special breastfeeding mode, for alla youse who are currently lactating.

Funny, too, I just (re)found my SF31 that I forgot was nicely WW. It might even displace my WW Xeno as my poke-around-at-night light (which always starts in medium).

[SKV89]

Very interesting find! 1800K is sweet and my dream temp for night lighting. However, I tested many ultra warm LEDs in the past that had positive DUV and the yellow bothers me. If this is 1800K with a negative DUV, and especially 90+ CRI, it would be the grail light. So far E21A 2000K 90+ CRI is the closest to candle light.