I daily ride my bicycle 8km's to get to work, and back. Its pretty good exercise, gets me really awake by the time I get to the desk. However, I don't think e

I daily ride my bicycle 8km's to get to work, and back. Its pretty good exercise, gets me really awake by the time I get to the desk. However, I don't think everyone can do this. I suggest to my friends, equally endowed with a beerly-gait as I, to get into it to .. but nope. City slickers got no time to ride no bicycle, no 2 or 4 or 10 km's. Pity really, because it absolutely improves life quality, imho.