Red light, stop. Blue light, go.

[jeneralist]

OK, I'll admit that I had wondered: why is it that blue light, of all the colors in the rainbow, is what you need to realize that it's morning? See, I had learned that the "cone" cells in the eye -- the ones responsible for color vision -- are tuned to three specific wavelengths; the "blue" cone is most sensitive to 430 nm. But the blue light

Comments

For Insomniacs

[ingridsummers]

Here is an interesting tidbit for those that can't sleep and stay up to watch TV or computer surf. They might want to consider yellow glasses or avoiding the BLUE BOXES.

They might also want to wear yellow glasses late at night while doing homework at computer screens. Figueiro says that those screens are rich in blue emissions and so suggest the presence of morning when a person's biological clock should be registering that it's time to sleep.

Re: For Insomniacs

[vgnwtch]

:::Makes a note:::

[selki]

Oooh!