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We are made to reproduce!
And yes, we are programmed to die.
All cells except stem cells have a limited capacity to divide. This is regulated by telomeres. These are small repeats of DNA at the end of the chromosomes. Everytime a cell divides, and thus copies all of it's dna, some telomere repeats are lost. Once no telomere repeats are left, the cell cannot divide anymore and can only die.
I think if the right parts of the chromosomes like the chromatids were unlike they are, we could live continuously. I forgot a lot of my limited studies in this.
Cells don't wear down like rubber, or Titanium. If the ageing factor was not there, we could repair and repair, given the right food and no accidents, and just go on and on. Always young, not growing, but regenerating like a youth.