<i>and no sane doctor is going to recommend you play golf or drive cars to lose weight.</i> - Dingo

I don't know about driving cars, but walking a three and a half mile golf course and driving balls is a definite workout and I'm sure it is doctor recommended. (No, not if you drive a cart around.) It also requires a lot of skill if you plan on getting in at anywhere near Par. Not me though as I usually end up with a score of over 120, but that just means that I get more of a workout.