blue light associated with prostate and breast cancer

thanks , so is 3000k safe?.
considering a 2000k if it comes to all this.

thanks.

WARNING

reading this thread my cause cancer or worse still it may overstimulate your hypochondria.

thanks , - so what do you use daytime use?.
I have a 5600k E21A for daytime use.
I am even considering 3000 or 2000k for daytime use to be safe.

’If’ I read it correctly, the chart indicates the only truly “safe” ones are:

  • I. Narrowband Amber LED
  • J. Low Pressure Sodium

Everything else has ‘at least’ 1% of Blue Light.

:wink:

thanks Teacher!. isn’t it best to just stop using say 6500k light by a certain time of the day and switch to way less such as 2700 and less?.
Red LED.

If you are really concerned about reduced melatonin levels, melatonin supplements are pretty cheap and definitely help one sleep at night. 1-2mg for a night or two does the trick for me, and gets me back on normal sleep patterns for several days/weeks.

IMO the key here is keeping a regular sleep pattern. day in and day out, weekdays, weekends.

I wonder what other lifestyle factors are associated with the people who live in these areas, and how that affects their melatonin production and circadian rhythm?

Don’t think that just switching from a high temperature to low temperature light in your house is going to protect you. Perhaps that’s a good thing to do, but life’s much more complex than just what color light you are exposed to at night.

Sleep normal hours. Keep your room dark. Wind down before bed. If you’re a male, and if you live long enough, you’ll probably get prostate cancer anyway. My dad fell asleep in front of the TV for years and years. Prostate cancer finally killed him at age 86.

I honestly have no earthly idea my friend, I was just looking at that chart. :slight_smile: Personally, I am not worried about it enough to change whatever CCT light I happen to be using.

But…… I do totally agree with what sbslider said in POST #44 :+1:

The nightly cycle of melatonin production suppresses tumor growth. Blue light suppresses that.
You can look this stuff up.
https://www.google.com/search?client=firefox-b-1-d&channel=tus&q=melatonin+production+suppresses+tumor+growth

Good one Nev!! :beer: . :smiley:

Blueness associated with testicular cancer!

Don't let your testicles get blue!

There’s ample reason to mock the idea — it’s scary.

https://www.nature.com/articles/6601626

Cancer is very serious.

I just don't think blue light causes cancer.

IIRC whether Melatonin supplements actually get anything past the blood-brain barrier is undecided. They are potentially helpful. My anecdote is that they do seem to help me get to sleep but I feel very groggy the next morning even if I take them fairly early the night/evening before. Could be placebo or just coincidence though.

Every link in the causal chain is well tested and documented: blue light exposure reduces melatonin, reduced melatonin increases risks of certain types of cancer. The only question is whether this extends to something as widespread as working nights, if your sleep pattern is reversed from most, does it only matter if you are exposed to lots of blue light during your “relative night” or during actual nighttime as well?

The whole point is that it’s exposure to blue light during the night that is the major cause for these issues. No flashlight or screen comes close to matching the blue light production of the sun during the day. The only exception to that is if you’re on the night shift and have blue light exposure during the day, which to you is night.

very cool

do you think blue light could be keeping your melatonin suppressed?

Im interested in trying Red Trits

Most of the OTC melatonin pills are massive overdoses, far more than the body produces naturally during a dark night.
The pills dose you with 15 to 30 milligrams or more; one milligram is one thousand micrograms.

The body’d natural production is measured in _micro_grams.

The risk that this poses for you to develop cancer has to be so small as to be almost infinitesimal. You are far more likely to develop a form of cancer from chemical exposure or other environmental/epigenetic factors. This thread needs to die.

Do you understand the concept of bioavailability? Or first pass metabolism?

take some warm trits and call me in the morning
.

After some more reading it seems Melatonin taken orally absolutely does pass the blood-brain barrier. Don’t know what the bioavailability is though, or how much is broken down in the gut before absorption.

Risk factors compound with one another though, and eliminating or reducing this one should be fairly easy for many people. Even if cancer risk isn’t the primary concern blue light exposure is clearly having numerous negative health affects for many people. Lack of sleep/lower sleep quality is linked with many other health conditions and overall reduced quality of life, productivity at work, etc.

Not the gut, it undergoes hydroxylation in the liver. Just because you take a 15mg dose of a medication does not mean that it is the effective concentration that your body receives.

I am not arguing that there is no health risks from exposure to blue light wavelengths. Just that there is very flawed thinking by people with no formal training.

Risk factors do not always compound and I am not sure how you came to that conclusion, it would depend on numerous factors.

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

You can look this stuff up.