blue light associated with prostate and breast cancer

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

[Clemence]

Your welcome. :slight_smile:

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

And an earlier caution:

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

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

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

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.

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

:person_facepalming: :person_facepalming:

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…

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!

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.

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?

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!

Not to sound like a shill, but I got (and reviewed :wink: ) 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. :open_mouth:

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).

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.

Actually, I was wondering if the WW LEDs were actually PCA instead of WW-1800K. That would certainly take care of the no-blue part, as I don’t know if 1800K has much blue content, and if so, how much.

Looks interesting. Is there a way to rotate the head it so that it shines at the ceiling and functions more like a torchiere?

Looks/Feels like a sheathed gooseneck, so it does bend backwards and even tilt/swivel. I’d just do it slowly and carefully, in case there’s any bias to being angled in one direction.

Yep, I agree on sugar substitutes.

A lot of people really believe it's dangerous, but not me.

https://www.snopes.com/fact-check/splenda-testing/

Not gonna say I’m an expert, but I have noticed NO DIFFERENCE WHATSOEVER. And I sleep with an iPad, iPhone, and Mac Book Pro right next to the bed. Plus, a large Samsung smart TV is 12 ft away.

Huh… looks like someone already tried it:

https://www.amazon.com/gp/customer-reviews/RC15BE6VC1E9E/

So, yeah, guess it can be upturned torchiere style.