64 was easy! And I durned well intend for 74 to be similar.....can't promise on 84, but I have a role model. I drove almost 3000 miles a few years ago with a man who was 88, and lived to 100! At 90 he went on a trip to Peru and did the 'canopy walk' through the jungle trees.

I can still put on my underwear balancing on one leg, so I'm ok in that area... (yes..of course I change legs between sides!)