lizzypopbottle, so true (no good waiting until you're old and unfit). I don't feel a need for special exercises yet, though, as I'm very active every day.
Today, for example, two long walks with the dog, several hours gardening (mowing with a push mower, pulling up weeds and trimming trees from a ladder) - and after lunch, cleaning windows. Yes, I did sit down with tea for half an hour before the second walk. I believe too much sitting around, lack of normal exercise and really bad lifestyle/food choices (for decades) gradually cause so much illness, injury, weakness, unhappiness and frailty (conveniently considered 'normal' in old age) in our western societies. This study found quite a dramatic difference in (so-called) age-related health problems between countries:
www.eurekalert.org/news-releases/703031