I am halfway through Richard Askwith's "The Race Against Time" - a good read so far. The message from the sports medicine chaps - in great brief - is: don't stop; do weights, balance exercises, and speed sessions; and look forward, not to the past. One interesting idea is that those who continue to exercise a lot into old age may be in the minority, but in terms of overall health, those who do very little are the ones who are out of step.