I still run like I am on active duty, and drink moderately. Healthy enough for me.
Now, I can workout, get up into my target heart rate and sustain it while listening to my tunes, talk radio, FReeping, etc.
I use to be an avid runner, but over time the pounding on the knees and back started to take their toll. If I had the spare change laying around i'd love to get an endless pool.