Now, this is adaptive in the short run, but can lead us astray in the long run. Effective problem solving helps us limit negative emotions, but it does little for engendering positive emotions. Research has shown that if we want to feel 'good' we have to stop doing things that make us feel bad, and do more things that lead us to feel better. You can be the best problem solver in the world, but it's seldom going to make you smile, much less belly laugh. Fun, laughter and hope are good for us.
Negative emotions drain our energy and compromise our immune system.
Positive emotional states energize us. A sense of humor helps alleviate stress and ward off despair. Not too surprisingly, studies also suggest humor has a positive effect on our immune system. Humor allows us to look at the mishaps of life without becoming enmeshed in them. It is hard to feel sorry for ourselves and laugh at ourselves at the same time.