I was reading a Guardian supplement on obesity that's been knocking round the house for a while unread (!) and found something which gave me a good motivational fright. It said that one's lungs become less effective when they're surrounded by fat, and that one can find oneself short of oxygen. That explains why I have been becoming short of breath recently... it's not when I move, just happens when I'm sitting or standing still. I have to take conscious deep breaths to get enough air in. Holy Cow!!! That concentrates the mind wonderfully - as if the sore feet, hips, knees, etc. weren't enough. Pretty damned scary. I hereby state my resolve to move away from my sacred bovine state to one of lean giraffedom. Well, something like, anyway.