Well this is one of the worst site I ahve ever visited .
what it tells you is when you are going to die.
Besides it also tells you the death time of a few celebrities and famous persons.
You can enhence your life by terming youself as a normal person.
However , if you choose yourself as a sadisitic person then your life will decrease.it seems they have made a formulae of some age add up which it adds with your birht date and the result is youe death clock.