There is some interesting research done on dancing in synchrony with others and the health benefits it may have. This is an excerpt from an interview with Shankar Vedantam, a social science correspondent for NPR:
“…here’s what the researchers think is going on. When experiences feel good, that’s usually a signal that they have served some kind of evolutionary purpose. So the brain evolved to find certain kinds of food tasty because it eating those foods had survival value for our ancestors.
As a social species, being part of a group has survival value. Evolution also may have adapted the brain to experience a sense of reward when we did things with and for other people. Dancing together, especially in the synchrony, can signal that you are actually simpatico with lots of other people. The researchers think this is why so many cultures have synchronized dancing and why it might have health benefits.”
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