The enzyme that holds the key to human ageing and will lead to loger, healthier lives.

Dr Michael Fossel knows more about ageing than just about anybody having been at the forefront of ageing research for decades.

In this ground-breaking book he shares his startling insights into the nature of human ageing. The consensus forming proposes the theory that all ageing is 'cellular' ageing and that every time a cell reproduces it's telomeres (the ends of the chromosomes) shorten. With each shortening, cells 'age' and become less able to repair.

Yet some of our cells do not age as they create telomerase which re-lengthens the telomeres and keeps them young!