Not exactly, but there are promising experiments that may or may not turn into something in the near future. There are competing hypotheses for what's causing

Not exactly, but there are promising experiments that may or may not turn into something in the near future. There are competing hypotheses for what's causing aging and how it may be "cured". Among the more "simple" ones is that aging is programmed, for some reason like to ensure genetic diversity and that new genes can get a good chance to survive and reproduce. That's the thing with young blood seemingly doing some rejuvenation on older individuals. This has not yet resulted in huge lifespan extensions of any animals. Whether this is just because the procedures needs to be tweaked a bit or the hypothesis is wrong should become clear in the next few years I think.