Changing the way we think about play in relationship to being an adult can greatly increase physical activity during the adult years. The paradigm through which society currently views play is that it is something children do–when you become an adult, play stops (or moves to adult-only activities). We’re forgoing a lot of fun and many health benefits by perceiving play as for kids.
Adults can enjoy play if they give themselves permission and don’t allow it to interfere with their self-definition as an adult. We all define ourselves and the behaviors that are appropriate for us, though many do not do it consciously. There are tremendous benefits of deciding for yourself, instead of allowing society to dictate to you, what is appropriate for you.