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OP forgot a few variables... Roy Campanella spent most of his life in a wheelchair after a horrible car accident. Mickey Mantle drank more alcohol than many s

by edw519 17y ago

OP forgot a few variables... Roy Campanella spent most of his life in a wheelchair after a horrible car accident. Mickey Mantle drank more alcohol than many small countries. Do you think these things just might have a little more impact on longevity than smiling?

sliverstorm 17y ago
Hence the reason you try to take a large sample size (230 photos), to control for effects like that. Those players are just examples. Besides, Mantle drowning himself in alcohol typically = unhappy. As they did not explicitly say SMILING MAKES YOU LIVE LONGER, but that players who tended to smile tended to live longer, that still fits the results. The unhappy guy is killing himself, and it shows up in his facial expression.