Corrections, random greek people living on a specific island getting plenty of good food, growing it themselves, sleeping as long as they feel like it, quitting smoking and getting lots of sunlight. Any mysteries there? Nopes.
As for Moritz, Clark, the rest,
That's the stress you put yourself under trying to promote a certain subject/agenda and being a public figure.
Cancer and the like don't come alone from what you eat-drink-do, but also how much stress you're in, and your spiritual life.
It's pretty simple. When your Creator marks your time down in the calendar, you can plea for more time and perhaps recieve it, but the days you have left, how you use them is up to you!
The body isn't a machine, it's a vessel. Fill it well and lovingly.