For anyone interested in why we age and what research needs to be done to cure it, I'd recommend this article http://protein.bio.msu.ru/biokhimiya/contents/v78

For anyone interested in why we age and what research needs to be done to cure it, I'd recommend this article http://protein.bio.msu.ru/biokhimiya/contents/v78/pdf/bcm_1061.pdf http://protein.bio.msu.ru/biokhimiya/contents/v78/pdf/bcm_10... The most interesting part is that a relatively simple medical procedure called plasmapheresis or plasma exchange, might be used for rejuvenation. The process would be to exchange the blood plasma of an old person with that of a young person many times over a period of time. The blood plasma contains signaling molecules and there is strong evidence that some of them are used to synchronize the current age throughout the body, perhaps to a master clock somewhere. This causes telomeres to be shortened, DNA repair mechanisms to be turned off, stem cells to stop dividing etc. If the clock could be reset with young plasma, the stem cells would be reset to a young state and can start dividing again to regenerate tissue. Experiments on rats suggests this is indeed happening and a number of academic labs and even a startup called alkahest is now working on getting this tested in humans.