Test that tells you how long you'll live

[escape_attempt]

A blood test that can show how fast someone is ageing - and offers the tantalising possibility of estimating how long they have left to live - is to go on sale to the general public in Britain later this year.
The controversial test measures vital structures on the tips of a person's chromosomes, called telomeres, which scientists believe are one of the most important and accurate indicators of the speed at which a person is ageing.

http://www.independent.co.uk/news/science/the-163400-test-that-tells-you-how-long-youll-live-2284639.html