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The Aging Eye and Health

by Marcia Mueller

Light from the blue spectrum has been shown to have an effect on our health. Researchers have found that the aging eye filters out a large percentage of blue light and as a result older adults sleep worse and have poorer memories.   Their findings could be an explaination for why shift workers have higher incidences of insomnia, cancer and heart disease.   Blue spectrum light is found in LCD screens and compact flourescent lights.  The cunundrum is if we have too much night time exposure to blue light we can have trouble going to sleep, but if we don't get enough during the day we can also have trouble with insomnia.  Check out the linked NY Times article for more information and be sure to follow this link as well.