By Catherine Haug, Nov. 14, 2016; updated 1/4/17 regarding f.lux app (photo, right from Recycle Nation (1))
About a year ago, a health newsletter newsletter had an article on problems with LED lighting. They explained the issue of LED blue light at night and how it can impact our internal clocks, sleep patterns, and immune systems. Not long after that, Edd mentioned that when he drives the school bus in the dark early morning hours, oncomming cars with LED headlamps blind his vision until the car is well behind him. I seldom drive at night so had not noticed that problem, but I believe he is right.
Nowadays, most of us have smartphone, tablet and computer screens lit by LEDs, and many of us have LED TV screens. We’ve also begun to replace our homes’ incandescent and CFL lighting with LED lights. Do we face risks from these?
The answer is YES. But there are things you can do to minimize that risk.
For printable pdf version, see LED lighting: Why you Need OrangeGlasses; it includes the 1/4/17 update. (link essentialstuff.org/wp-content/uploads/2016/11/LED-lighting-OrangeGlasses.pdf ) (more…)