I combine a reasonable amount of walking, or when the weather is like today - pouring and blowing a gale, indoor exercise, with reading books I enjoy, but also force myself to listen to the news, or read them online.
I find that part of keeping one's brain active is still hearing and discussing opinions that are not necessarily your own.
I also volunteer at the local museum so as to get to know new people and have someone other than DH to talk to.
Let's face it: at this time of life we know what our husband or wife is going to say and think about most things, so it is rarely there we encounter a new opinion.
Your next holiday must be to where the first holiday you remember , where are you going?g
The Devil In The Family: The Fall of Ruby Franke - BBC IPlayer
What was directly across the road from the school you went to?

wishing you a happy and healthy new year.