(post bumped forward from 5/24/08)

Constant toothy smiling can cause stress, high blood pressure, depression and heart problems according to Johann Wolfgang Goethe who studies smiles at the University of Frankfurt. "Zapf recommends that 'professional smilers' take regular breaks to relax, rid themselves of aggression and recuperate from the effort of smiling." There are some jokes in the article about how German customer service isn't the friendliest on the planet, anyway.

SCIENCE:
http://www.sciencedirect.com/science/article/pii/S1053482202000487 on emotional work
http://www.tandfonline.com/doi/abs/10.1080/13594320500412199
http://www.tandfonline.com/doi/abs/10.1080/10615800903254091
http://www.tandfonline.com/doi/abs/10.1080/10615806.2010.530262
http://onlinelibrary.wiley.com/doi/10.1348/096317905X39666/full

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