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Your Brain Has Two Different Laughs, and It Knows Which One Is Fake
Researchers say spontaneous laughter and polite fake laughter come from separate brain systems and even sound physically different.
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Photo: drante / Getty Images You’re 30 Times More Likely to Laugh Under These Circumstances
Psychology professor Robert Provine spent decades studying laughter and learned a lot about humans along the way
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Tunart/Getty Images Why Some People Laugh at Funerals, According to Science
The harder you fight it, the worse it gets.
