At first blush, you look happy -- or sad, or angry

http://ift.tt/eA8V8J Our faces broadcast our feelings in living color -- even when we don't move a muscle. That's the conclusion of a groundbreaking study into human expressions of emotion, which found that people are able to correctly identify other people's feelings up to 75 percent of the time -- based solely on subtle shifts in blood flow color around the nose, eyebrows, cheeks or chin.

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