Have you ever lived with or helped a person with AD? It's not cellular senescence. What you're talking about is fine and well, but AD is a devastating disease that has very particular symptoms. We may not know all of the causes, but reversing cellular senescence isn't going to solve this.

Researching and curing AD is not barking up the wrong tree. There is a horrible deadly monster in that tree that needs defeating. I hope people also get scientific funding for other age-related issues.