Another uncomfortable fact of life: Aneurisms. Many folks have them within the brain and/or along primary blood vessels and have not ever learned of that fact, for many reasons, until one day, poof. Death occurs quickly and one drops exactly where they were at that moment. One can be standing in an Emergency Room of a modern hospital and there is not anything that can be done for them.

MDana (sorry for butchering your handle) can explain this fact of life much more intelligently than I.