Doctoring, Bike Racing and Blogging...

Why would a bike racer-cardiac electrophysiologist have a blog?  I ask myself this question often.

Is it because I am a frustrated teacher, and there is so much cool stuff to show others?  Is it because bike racing provides a different perspective to doctoring?  Or is the blog a way for a middle aged person to fill in life's gaps.  I am not sure there is any one concrete reason to dwell in the blog cocoon.  It is certain though, the dissemination of worthwhile information to others provides positive sensations--like those from a life-enhancing bike ride.