When I'm agitated and looking for things to keep my brain occupied, I'll take the time to do pretty much any silly internet quiz. By strange coincidence, not one but two life-expectancy quizzes told me that my life expectancy is 95 years!
I think it's weird that neither one asks if you yourself have been diagnosed with cancer, heart disease, or the like. A lot of time on family history, etc, but you? Nah, your own condition won't tell us a thing about how long you'll live!