What evolutionary purpose does laughter serve? Have the actual physical functions that trigger laughter been discovered?
I've always thought - and this is just a guess - that, like sex feeling really good makes you want to do more of it and in turn continue the human race, so too does laughter make conversations enjoyable and helps promote dialogue between people. If sitting around a campfire and talking
only included boring, or angry, or pointless conversations, then there would be no fun, or good feeling, in sitting around conversing.
But conversing is how we also spread information. Critical information. So we need to talk. Maybe laughter from dialogue helped us
want to talk.
- Oni