You know the more you laugh the longer you live. This is because you both; exercise your diaphragm, and release endorphins in your brain. Smiling is a milder way of laughing. And yes, I actually smile when I type :) and I actually laugh out loud when I type lol.
Uhh, no, smiling is not a milder way of laughing. But smiling does release endorphin's, even a fake one will release a little bit.
