the.com/bashfulness
the body sounding a five-alarm fire when someone simply makes eye contact
Blush originBlood vessels in the face dilate involuntarily under attention
Darwin's puzzleHe called blushing the most peculiar human expression
Only humansNo other animal blushes from embarrassment
Self-aware glitchRequires imagining how others perceive you
Cooling theorySome research links facial flushing to thermal regulation