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Why do we blush? The science behind the reddened cheeks

Why do we blush? This question has been puzzling scientists for years and various studies have been conducted to decipher this emotional arousal of human beings. Back in 1872, renowned British naturalist Charles Darwin described blushing as "the most peculiar and most human of all expressions". Researchers at the University of Amsterdam thought of going a layer deeper and conducted experiments on mostly female young people aged between 16 and 20 to reveal the science behind this phenomenon.