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Great article on how light affects the mind & body...

Here is a snipet from the article...with a link to the whole article below...

High-Tech Lights to Help Baby Sleep, or Students Stay Alert

By DIANE CARDWELLSEPT. 11, 2015

Like many expecting parents, Tracy Mizraki Kraft in Portola Valley, Calif., worried about how her newborn would sleep. So she paid attention when her doctor handed her a light bulb that he said would help her son do just that.

The small amber bulb, called Sleepy Baby, seemed to work well, she said, creating a soothing environment for Leo, now 16 months, as he drifted off to sleep.

For Ms. Mizraki Kraft, the bulb’s appeal was self-preservation. But it is part of a technological revolution coming to homes, offices, hotels and schools through lighting designed to undo the ill effects of artificial light — both overhead and on screen — and help regulate sleep, alertness and even people’s moods.

“Lighting is really not about a fixture in the ceiling anymore,” said Mariana Figueiro, who leads light and health research at the Lighting Research Center of Rensselaer Polytechnic Institute. “It’s about delivering individualized light treatments to people.”

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Scientists have understood for years that different levels and colors of light can have powerful biological effects on humans. But that concept has been applied only with expensive bulbs — costing as much as $300,000 — for specialty applications like mimicking the 24-hour cycle for astronauts or treating jaundice in newborns.

The Sleepy Baby bulb at the Lighting Science Group's workshop in Melbourne, Fla. The company is devoted to the growing market for lighting to enhance rest or alertness, with bulbs like Good Night, and Awake and Alert. Credit Oscar Hidalgo for The New York Times
Now, with lighting technology, especially LEDs, becoming more sophisticated and less expensive, companies are developing so-called biological lighting for ordinary consumers.

Link to the whole article:

http://www.nytimes.com/2015/09/12/business/energy-environment/high-tech-lights-to-help-baby-sleep-or-students-stay-alert.html?smid=fb-nytimes&smtyp=cur&_r=0

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