I don't smoke either, never have. And I do exercise; yoga, tennis and riding a bike (until the snow comes) and walking. I was thinking of starting pilates-type of exercise as well but when I signed up for the class I was given queuing number 25, and it's a group of 50, so I guess I won't be going... Anyway, I think exercising is important for everyone. I can at least recommend (daily) yoga for anyone with muscle stiffness. Actually I can recommend it for anyone, it's just makes you feel good.