Laughing at ME

I have been a long time observer at people to are very good at laughing at themselves. I don't have any studies but I'm almost sure that those types of people are happier. To be honest, I'm not very good at this - but I'm working on it. Doesn't it seem like when we laugh at ourselves we forget ourselves it gives us a chance to start over - and as Lewis says - start over as a child again?