Is all this exercise even good for me?

I went off script this week and didn't stay on my planned agenda. The last show got me thinking about longevity and if this exercise stuff is really even healthy. Well.... the answer seems to be "sort of." Peak performance and longevity generally don't go hand in hand and in the TedTalk linked below or on my blog from cardiologist Dr. James O'Keefe called - "Run for your life! At a comfortable pace, and not too far" covers just that. https://www.youtube.com/watch?v=Y6U728AZnV0