Of course I would want to know.
Then I could save people and help people without any fear of dying, just rush into a flaming building and rescue people for example.
Give all my money to charity, I wouldn't need it.
Problem with that is that it ain't much fun having to live with severe burns either, even though you don't exactly die... Perhaps it'd be more interesting to know up to which date you would be healthy and feel well... Or, probably not...