The evidence of rejuvenation is only shown in mice. Currently a human trial using this for Alzheimer, results expected soon.

First results from human young blood rejuvenation trial expected | New Scientist

A company called Ambriosa has started a trial for anyone above 35. If by the end of the year I do not see improvement I might jump on this boat.

Google

Since blood transfusion are low risk (that's why the trial was approved quickly for healthy individual) that's something to think about I think....

Clearly I do not have any medical backing for this, except from mice. The results show rejuvenation of the brain (memory and so on).

Sorry for the sloppy post but I thought some of you would be interested to learn about this more, if standard therapies failed.