Tell me more ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free, no registration required.
up vote 0 down vote favorite

I read that the blueish light from a regular computer screen makes one awake since that blueish light is like sunrise and day. To prevent that, one should not use computer screens some time before going to bed, and only use incandescent light bulbs (no LED, no neon) since they have a reddish color.

One can get software to change the displays color temperature with software. I wonder whether this actually helps, since in the spectrum of the display, there is still a lot of blueish light.

Does that really help, or is it just that people believe it?

share|improve this question
1  
Not a physics question, really: this is a a question about humans. I can ask the mods on Skeptics if they want it, but they will require you to find a notable claim before they will accept it. – dmckee♦ Sep 21 '12 at 22:52

closed as off topic by dmckee♦ Sep 21 '12 at 22:52

Questions on Physics Stack Exchange are expected to relate to physics within the scope defined in the FAQ. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about closed questions here.

Browse other questions tagged or ask your own question.