Anecdotally, I've found that many people who are health-conscious come from a place in their lives where they were very unhealthy. So it became a thing for them

Anecdotally, I've found that many people who are health-conscious come from a place in their lives where they were very unhealthy. So it became a thing for them to try out everything in order to get better. This should improve memory among other things. Still anecdotal though.