This was entered on TOV a while back but perhaps would fit well into this topic
Calculate Your Life Expectancy
This is neat! Be honest, take note, then go back and change the things that you can control and see the difference. It's a real eye opener!
This is a calculator that estimates your life expectancy.
It was developed by Northwestern Mutual Life.
It's interesting that there are only 13 questions.
Yet, they can predict how long you're likely to live .
http://media.nmfn.com/tnetwork/lifespan/