The AMA also says that they want to make aspirin into a prescription drug too.
Certain wavelengths of light are not as healthy as others, and there may be less or more of a tendency to over scare people about skin cancers too. It's a lot of New Wave pseudo-medicine I think.
There is a c/p that I like to show about here in these conversations:
Melatonin-suppressing light is “dangerous only if we expose ourselves to it during the hours when we should be in the dark, and if the exposure is sufficiently intense or long,” says physicist Fabio Falchi, of the Light Pollution Science and Technology Institute in Italy. He advises people to rely more on incandescent light after dark, especially in the bedroom.
This is in reference to BLUE light waves which are hard to focus as the wavelength falls short of the retina so it cannot be focused clearly - and that it triggers the pineal gland to suppress melatonin production - which regulates sleep.
This is a big reason why one should not have blue pilot lights running in one's bedroom, as it will interrupt sleep by falsely telling the subconscious that there's daylight and it's time to get up. If your bedroom is lit up like the mainn deck on the Starship USS Enterprise, then you might be losing REM cycles and the effects they have on good health and (yes) even can cause suicidal thoughts.
Continuing with my favorite process of c/p, I have this article translated from French or Italian - I forget which - but it has some good non-scary news:
LED lights are perfectly safe:
- They emit less UV radiation than any other type of light, see fig. [1].
- They are very energy efficient (100lumens/W) and they are cold to the touch, so they are safe for handling and less likely to start a fire.
- They are harmless when broken by accident [2].
- Cold white light LEDs may be irritating to some people with light sensitivity, but nowadays warm white light LEDs are available. Eyestrain is mainly caused by blue LEDs, such as those found on electronic devices [3]. However white LED lights should be tested for photobiological safety [4] according to the ANSI/IESNA RP-27 standard [5].
[1] UV radiation concerns had been raised for CFL bulbs, but they too are safe, because the intensity is insignificant compared to UV radiation from daylight.
[2] In contrast, CFL lamps contain mercury vapours in quantities that are not dangerous, but require special recycling.
[3]
http://texyt.com/bright+blue+led...
[4]
http://www.ehow.com/facts_744581...
[5] as it is done by Cree, f.e.
http://www.cree.com/products/pdf...
See also:
http://www.osram.com/osram_com/L...
http://en.wikipedia.org/wiki/Lig... (section on safety)
Most of the controversy that can be found on the web right now is on the potential hazards of CFLs and on whether a transition from incandescents directly to LEDs would be better.
The matter of fact is that both CFLs and LEDs are perfectly safe.
It has been observed that all the prattle is roused by marketers, trying to edge their competitors out of the market, which is sad, because it slows down adoption of energy efficient lighting in general.