Check this out:
http://news.independent.co.uk/world/...p?story=374192
Making the big assumption that this test does turn out to be an accurate predictor of lifespan, would you get tested or want to know the results of your test?
I think I would.
Thinking about it, I'd consider it a valuble life planning tool. If I'm gonna drop dead at 45 for example, I could use all my money pretty much as I get it without having to worry about retirement.