Why can having a purpose in life slow down your aging?

Telomeres, which are sequences of DNA at the end of chromosomes, can provide one way to judge your rate of aging. The longer your telomeres, the more your stem cells can repair damages elsewhere in your body, and the younger you are. People with purposes in life (ones that don't stress them) have much longer telomeres (almost eight years worth longer) than their chronological age and other healthy behaviors would justify - the telomeres seem to be elongated by having that purpose.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.