Are there any remotely promising paths to treating or preventing neurodegenerative diseases like these in the future? Or at least to slow down the progression? Are there any experimental drugs? Will we likely just need to wait until targeted in vivo genetic engineering is understood and mastered?
I know those are broad questions, but suffering from something like dementia, Alzheimer's, or Parkinson's, or having a loved one suffer from it, seems like one of the cruelest fates imaginable. The helplessness of the doctor saying there's basically nothing you can do other than to try to eat healthy and exercise... If I was given such a diagnosis while still lucid, I think I would want to try every experimental treatment available, if any exist. I'd accept almost any risk over that horrifying, inevitable outcome.