The conerstone of a good preventaive healthcare plan is to see your healthcare provider for a physical exam.  It may not be neccessary every year, but if you haven't been

to see your doctor for a check up in a few years, now is the time to go.  The point is to get a clear picture of your health status and determine what further tests and preventative measures you need to take to optimize your health.  With your provider develop a custom program for you based on your age, personal needs, family history, and lifestyle risk factors.