Mine is 80 and still walks three miles a day.
She and Dad do this together most days, as it's excellent cardiovascular exercise to walk three miles in less than an hour and very low impact on the joints. I think until about two years ago Dad still could have beaten me to death. I'm pretty sure that Mom still could.

I seem to have inherited their iron constitution- it's been a couple of years since I had anything worse than a day's worth of feeling crappy with a cold. I recently got a deep bite on my hand from a cat, and after three days of not being able to make a fist I'm now almost completely back to normal.
( The Resident Loon Not a demographic. Do not measure., Sun 14 Feb 2010, 22:44, Reply)