Play On: Why Play Time Will Help Your BusinessInject more fun into your life and unlock your true potential.

It seems every year, the physical and psychological advantages of uninhibited and unscripted play become more evident. Consider, for example, that playing around is the easiest way to turn strangers into trustworthy friends. This outcome works across age groups, genders, races and even species -- think about how we play with our dogs -- to bring us together.

To adapt and grow as a species, we need to play, according to Stuart Brown, M.D., head of the National Institute for Play and a professor at Stanford University. Why? It's the very nature of play that leads to innovation and self-discovery that can turn into a happier, more productive life -- and a totally new business idea. Even pro athletes, who are paid to play games, understand the need to break out of their training regimens for some unstructured play. Take tennis superstars Rafael Nadal and Novak Djokovic. Both are known to recharge between matches by playing pickup soccer games.