Well, one common theme that keeps emerging is the importance of keeping fit as long as possible. That's tough to do if you're starting late (after the arthritis, hip replacements, heart palpitations (not the ones induced by string bikinis), etc., but is probably the single best thing as far as increasing your musical longevity. I think I'll go out for a walk. Nah, maybe tomorrow.
chas
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"Faith means not wanting to know what is true." [Nietzsche]