Neurodegenerative Disease and Chess

I found this group: http://www.chesscoachonline.com/about-ichessu. In their bio, they mention that they work with people with Alzheimer’s and the like. Here’s another one: https://www.checkmatesusa.com/about-us/our-classes/chess-for-seniors-alzheimers-prevention/
Hope these might be useful! On a unrelated note, did you have a previous account? Your profile pic and username looks familiar.

Are you referring to yourself OP or someone else you know? Also, what diseases do you mean specifically, something like MS and ALS?
I think it's cool that you are trying to figure out sources that might offer information for handicapped people to learn chess, a lot of people might actually benefit greatly from it.

There are several great techniques which I've used, one being neuro-linguistics programming. Some people learn visually, while others by hearing, and some are more tactile. You can even listen to the language a person uses to get clues. Of course, we all learn with all our senses, but it is which sense is the most dominant.
Then there are other techniques for other challenges as well. We've come a long way.
Sounds like an interesting idea. I think anyone can teach it though, right?