I am trying to find the podcast version of this seminar: https://wanp.org/event/botanical-influences-on-the-central-nervous-system-bastyr-u/. The actual even was cancelled but she has done a podcast. Beware though, the practitioners often survive by creating their own line of supplements and they are VERY expensive!!!!
.Earlier in my development as a professional whatever I wrote a posting on the 'blog' suggesting ways to wind back the progression of dementia and stop the gradual descent. From what you describe I would have certainly called what was/is happening as vascular dementia - which is your guess as well. The issue for John is how much has been the result of years of over-medication and a lack of activity (physical as well as emotional). If anyone is available there are strategies to 'teach' someone to take care of what is remaining and 'rewire'.
I found many ways (including my sight) to increase my flexibility and facility to take care of myself thus retaining independence. I have trouble sleeping and get up frequently in the night ( every 2 hours) . When this happens I do Tai Chi to help me breathe properly and for balance and exercise. The light coming into dawn and the few morning birds are very calming. Occasionally I have a small four footed audience. Mostly I am in solitude.
