The sky is more than pretty

Blue light apparently delivers the wavelengths needed to regulate our circadian rythmns, according to research described in Science Daily.

Blue sky is a mixture of wavelengths dominated by short wavelength light that gives a blue visual sensation. According to Mark Rea, Ph.D., LRC director, the circadian system is essentially a blue sky detector.

“Blue sky is ideal for stimulating the circadian system because it’s the right color and intensity, and it’s ‘on’ at the correct time for the right duration—the entire day,” said Rea.

LRC is the Lighting Research Center at Rensselaer Polytechnic Institute.

They performed a study in which they exposed elderly people to blue light, and found that the subjects slept more between midnight and 6 a.m.

We’re not meant to be indoors all day. No wonder so many of us aren’t getting enough sleep.

I wonder, also, about the effect of wearing sunglasses . . .

[tags] sleep [/tags]

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One Response to The sky is more than pretty

  1. Deb says:

    Interesting question….My husband, who is very sensitive to seasonal affects, doesn’t like sunglasses because he feels like he’s not getting the full effect of the sunny day.

    Also, us baby-boomers want to know all we can about getting a good night’s sleep. Maybe something that used to be taken for granted.

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