The problem is that this is only one known cause, so getting tested and not having that gene doesn't mean you won't get it. Since that gene is pretty rare, I w

The problem is that this is only one known cause, so getting tested and not having that gene doesn't mean you won't get it. Since that gene is pretty rare, I wouldn't see much value in it. That said, I do understand where you're coming from. My mother also had early-onset Alzheimer's, and it's really scary to know that it could happen to me as well.