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Science News, June 4, 2005 by Jill Holmgren
Research results on the physiological effects of blue light 1.5 hours before bedtime ("Blue light keeps night owls going," SN: 4/16/05, p. 253) makes me wonder about the effects on sleep and, subsequently, mood and metabolism for the millions of us who spend hours each night staring into two sources of blue light, the television and the computer screen.
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JILL HOLMGREN, FAIRBANKS, ALASKA
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