Blue Light Makes People Alert at Night
Wednesday, February 1st, 2006An early study suggests exposure to blue light at night can help perk you up. Not much in the way of detail in the article on what the level of exposure was, or what the possible long-term effects might be.
“Light exposure to this system, particularly blue light, directly reduces sleepiness,†said Steven Lockley of the Brigham and Women’s Hospital. “Subjects exposed to blue light were able to sustain a high level of alertness during the night when people usually feel most sleepy, and these results suggest that light may be a powerful countermeasure for the negative effects of fatigue for people who work at night.”
