I am well aware of the effects of aging on my own brain; a few years ago I read a book which outlined a few useful things about aging (yes, we forget names, of people and things, but we are better at synthesis). It is a symptom of my aging brain that I cannot for the life of me find it on Amazon because I can’t remember its name).
So it’s good to read this research which outlines why older people are better learners (we pay attention to what we got wrong, not just what we get right). So take heart!
And here‘s a radio national program on the ageing brain.