With the substantial rise in Autism and Alzheimers most would conclude that it is far past time to look at the cause of these diseases. This study was accepted in Nov 2017 and although it is only a study of 10 donors I believe it speaks volumes of what future findings will prove. Aluminium in brain tissue in autism provided by Matthew Mold may help us move forward:
https://www.sciencedirect.com/science/article/pii/S0946672X17308763

This study: Aluminium in brain tissue in familial Alzheimer’s disease should also be one that would cause reason for concern.

https://www.sciencedirect.com/science/article/pii/S0946672X16303777

Hopefully those in charge of approving and administering any medications or chemical cocktails will soon connect the dots and see where some of these known environmental toxins are coming from and stop injecting them as to at least rule out that they are causing and/or contributing to long-term harm.