It’s usually quite hard to hide when we feel angry or embarrassed because our faces turn bright pink; we blush. And it often makes us feel worse…
But does blushing serve a functional purpose?
“Blushing, in fact, has perplexed scientists since Charles Darwin, who famously studied human emotional expressions and called blushing “the most peculiar and most human of all expressions,” and theories as to its exact evolutionary purpose remain unreconciled.”
Read at Brain Pickings: The Science of Why We Blush – Animated.