Actually, I think there might be good science behind this.
I know with RA, the disease which Elf and I suffer with, the telomeres shorten at twice the rate of normal people. Therefore, if I will die younger because of this disease because of that shortening, it seems probable that lengthening them by some method might prolong life.
I personally don't want to live forever in a body which is deformed and in pain, however. My hope is in the resurrection of the body!
"So is it with the resurrection of the dead. What is sown is perishable; what is raised is imperishable" 1 Cor. 15:42.
Looking forward to that day!