Sergey Brin recently explained that his DNA carries a genetic mutation linked to Parkinson's disease. This announcement is notable for a number of reasons: first, it's from Sergey Brin, co-founder of Google and at this point in time, arguably far wealthier than the United States of America. Second, he learned it by searching thru his own decoded DNA, thanks to his wife's company 23andme. Third, he's gone public about a potentially devastating disease for which there is currently no cure, nor even effective diagnosis tools. Given that Steve Jobs has to publicly defend his health every day to keep shareholders happy, I find Sergey's stance bold.
In a sense, decoding your dna is the ultimate arbiter of style and substance. Once you've spit in the cup and gotten the result, you no longer get to look in the mirror and say "I look perfect" with a completely clear conscious because, ideally, the results tell you who you really are from the inside out. I did this last year--somewhat hesitantly since I'm a natural optimist (probably in my genes somewhere) and I didn't want to have to debate myself on the implications of bad news. The results were initially...modest. I can't think of a better description. While I loved wandering through the reams of new data about myself, most was less than enlightening. I learned I have a 7% chance of blue eyes (umm, more like 100%), and that with two working copies of alpha-actinin-3 in my fast-twitch muscle fiber, I could be a world-class athlete (perhaps...if I were 30 years younger and more disciplined).
But while my first experience with the decoded me barely satisfied a vanity-driven curiosity, my subsequent forays have been much more substantive.