In Need Death be Irreversible, I proposed applying the principle of redundancy that allows us to create long-lasting technology out of fallible parts to biology and to our lives in particular, by using spare organs. I now propose extending that to arteries by providing a spare carotid to prevent ACVs, and providing a pressure-sensitive pressure release valve for the cranium to prevent pressure-related brain damage during a brain hemorrhage. 

I also propose moving to real-time, or at least daily, monitoring of all relevant biological metrics for early diagnosis. If Steve Jobs had acted sooner on his cancer, he would likely have lived a lot longer. Steve delayed 9 months to make a decision, and that was too late. Early diagnosis would have give him more time, and would help others even more. There are scientists working on technology for cheap and easy diagnosis. The NIH needs to fund these, and the medical establishment needs to change the paradigm from one of treatment to one of prevention and early diagnosis. With insurance companies paid yearly premiums independent of health state, there is no reason the model can't be just as profitable, or more, for health providers and insurers. The industry of extended warranties for technology might provide a model.