[fletchowns]

Those plans should be in place regardless of the results of a blood test

[n4r9]

I think there are many people (myself included) whose plans would change dramatically upon discovery of Alzheimer's, dementia, or some other degenerative disease. I might consider moving to somewhere with more liberal assisted suicide laws for example.

[renewiltord]

No, they shouldn’t. Makes no sense to plan for living with a mental disability if you’re not close to needing it.

I am absolutely not going to plan on a care facility right now. That sounds absolutely bogus.

[adrianN]

Notarizing any wishes against some medical procedures in case a sudden accident ruins your ability to dissent prevents doctors from being forced to keep your body alive as long as possible.

[Spooky23]

My genetics are such I'm more likely to drop dead of a heart attack too young.

If I were likely to develop alzheimer's, I'd make more and more expensive accommodation for power of attorney and trusts to shield assets while I was competent to do so.

[fletchowns]

I was more referring to an advance directive / living will sort of thing