They did a whole story on him because his chances of getting Parkinson's are higher than the average? Must have been a very slow news day for the writer. After all, any of us MAY end up with a disease.
If Brin drops dead right now, he will still have had a better life than almost everyone that's currently alive. We're all pre-disposed for several horrible medical conditions, but most of us don't know or don't want to know. Which is fine, as long as there's no cure for most of the worst diseases.