I love that learning is mentioned as a way to keep your brain healthy. What are you doing with your brain if you’re not learning? Flex that brain muscle!
This infographic contains a lot of good information on the development of our brain over the course of our life.
I have to add, however, that I believe the outlook for our later years is significantly brighter than is suggested here. Check out my Page – Important Facts About Your Brain (and Exercise Benefits) for much more.