Monday, March 30, 2015

RT @SmokefreeUs: Fact of the day: Nicotine inhibits the production of rhodopsin, a chemical pigment essential for night vision. #quitsmoking



RT @SmokefreeUs: Fact of the day: Nicotine inhibits the production of rhodopsin, a chemical pigment essential for night vision. #quitsmoking (via Twitter http://ift.tt/1xQ4ihJ)

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