It's a heck of a lot simpler than a brain autopsy, or a spinal tap. And the real breakthrough isn't about people being able to know their demise, it's that the

It's a heck of a lot simpler than a brain autopsy, or a spinal tap. And the real breakthrough isn't about people being able to know their demise, it's that they're are a lot of things that we suspect from a epidemiological perspective lower rates of alzheimer's but which have no effect once the disease is progressed.