I've been asked to draw gazillions of images for a new book by a GP Dr Clara Russell (who also has Multiple Sclerosis), all about how we can all look after our brains as we get older. Here are a few of them, I'm not sure when the book is going to be published but will update as soon as it is.
And more about Clara here:
https://brainsciences.scot/the-sbs-blog-welcome-our-new-senior-clinical-investigator/