Another gem from 60second science:
Apparently happiness is catching. Researchers looked at 5000 individuals over 20 years, and found that whenever one person was happy, then their friends were more likely to be happy. This happiness propagation had a noticeable effect up to three degrees of separation away. Awesome, eh? Published 4th December online in the British Medical Journal.
So these three guys walk into a bar...
You'd think the second and third would have seen it.
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