Is it time for your second childhood? Maybe it is and you have failed to notice. You've been too busy doing the things American adults do best: work, worry--and wonder why.

A vital part of human nature is your spirit of play. You came into the world with your share. More than likely you used it from the beginning. A game of peekaboo with an infant shows how early it is in place. Just watch the reaction. How eager and responsive the child is to engage in playfulness.

Unfortunately, it