2% of Europeans lack the genes for smelly armpits.
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Children's sense of smell is better than adults'.
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The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
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Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
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The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
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The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
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