A Computer Algorithm Can See When You’re Drunk

Oh, alcohol. It can be so much fun, until it makes you do something stupid. But even without doing anything embarrassing, booze makes us blush. Now it turns out those rosy cheeks can be turned against you. Using infrared cameras, scientists have taught a computer algorithm to recognize drunk people by their facial flush. After a glass of wine or a nice whiskey on the rocks, alcohol makes your blood vessels relax and widen.

http://www.popsci.com