Sergey Brin Launches Personal Blog

The most outgoing Google co-founder, Sergey Brin, launched a personal blog at too.blogspot.com. "While Google is a play on googol, too is a play on the much smaller number - two. It also means in addition, as this blog reflects my life outside of work," explains Sergey Brin.

The first blog post is somber: Sergey discovered that he has a "higher chance of developing Parkinson's in [his] lifetime than the average person".

My mother had always been haunted by Parkinson's because her aunt had suffered from it. I had often reasoned with her that since Parkinson's is not hereditary (there is not a strong correlation of Parkinson's incidence among close relatives), she had little to fear.

In 2004, my wife, Anne, introduced me to her future cofounders in 23andMe as they were studying the genetics of Parkinson's Disease. As with my mother's fear, I was skeptical about the study. I reasoned that if there was much to be learned about Parkinson's in the genome, there would have to be a high percentage of inherited cases. In fact, I appeared to be right in that this particular study did not bear immediate fruit. (...)

So, when my wife asked me to look up G2019S in my raw data (23andMe scientists had had the forethought to include it on their chip), I viewed it mostly as entertainment. But, of course, I learned something very important to me -- I carry the G2019S mutation and when my mother checked her account, she saw she carries it too.

The exact implications of this are not entirely clear. Early studies tend to have small samples with various selection biases. Nonetheless it is clear that I have a markedly higher chance of developing Parkinson's in my lifetime than the average person. In fact, it is somewhere between 20% to 80% depending on the study and how you measure.

{ via Bradley Horowitz }