It's kinda the "heart attack" of Boxsters.
Ya go to the doc every year and get blood tests, take fish oil (or Mobile 1), try to exercize the proper amount, attempt to eat right reading labels and reading related info, take lipitor, etc, etc, but you know down deep that it's somewhat a crap-shoot. So, you worry more than necessary, and maybe you'll be lucky and not become a statistic.
Best I can say after writing that is that you can always buy another engine or car, and you will still be on the top side of the grass!!!!!