The celebrities that have consumed human brain tissue have a high chance of debilitating illness..
THESE PEOPLE ARE SICK.
The original story was that several people on the set of BTTF (now attributed to the set Family Ties)f became ill. It was attributed to Mercury poisoning at first, from a broken set lighting, but I think Patriots can deduce 'they' all attended an occult ritual together and contracted a type of transmissible spongiform encephalopathies.
https://www.intmath.com/blog/environment/michael-j-fox-and-the-parkinsons-cluster-782
https://www.nytimes.com/2002/05/14/health/parkinson-s-clusters-getting-a-closer-look.html
https://www.britannica.com/biography/Michael-J-Fox