At Brigham and Women's Hospital (BWH), researchers have found that exposure to short wavelength, or blue light, during the biological day directly and immediately improves alertness and performance. These findings are published in the February issue of iSleep/i. "Our previous research has shown that blue light is able to improve alertness during the night, but our new data demonstrates that these effects also extend to daytime light exposure," said ...
via Medindia Health News
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