I listened to a FoundMyFitness [0, transcript] podcast [1, audio] on this subject and was struck by the simple anecdote of how when ageing we will eventually need to hurry out of the way of some approaching car — and struggle to do so, and thereafter perhaps stop going out, reinforcing our decline. Interesting episode. [0] https://www.foundmyfitness.com/episodes/stuart-phillips [1] https://podcasts.google.com/feed/aHR0cHM6Ly9wb2RjYXN0LmZvdW5...