Some interesting results from the
Poodwaddle Real Age Calculator: though my biological age is 31yo, my "real" age is 21.6 and my life expectancy is 83.4 years (with an average of 74). Not sure how scientific it is, since you answer the questions using a sliding scale, where it's like, "Hmmm, okay...that looks about right." Seems pretty arbitrary.
Janet just took the test, and her "real" age is 4yo. Gah!