It has been a long time since you have worried about wrinkles, your age, or the number of times that you have had to go to bed early. What you are counting, however, is the number of days in the row that you are getting out for a walk or going on a bike ride. You are, in fact, at a point in your life where you know that staying active is far more important than many of the things that some of your friends are worrying about. You have one friend who has spent thousands on plastic surgery to …