I hope that when my boys are grown up, they will have a slight sense of discomfort when they don't get outside and breathe the fresh air after dinner. I hope they stretch their legs, walk around the block, notice what's happening around them and what changes from day to day. Even if it's raining or snowing. Say hello to any neighbors or stangers they encounter along the way, pat their dogs. I hope the impulse, the desire to continue this habit we have becomes ingrained in who they are.