Can't believe how energetic you all are!
I think balance and moderation are important:
age 69.5. two children, back and hip pain, but for my body I do line dancing once a week and table tennis once a week (for two hours), walk maybe twice a week, sometimes use the exercise machines in the local park, gardening, cleaning, occasional diy, or if I feel I have been too inactive I do some yoga at home.
For my brain, i do soduko and read a variety of books, I like foreign authors.
For my soul i attend a meditation class and a music appreciation group.
I eat a healthy diet on the whole but have at least one treat a day (on the weekly shopping day it is a fresh cream chocolate eclair).