The uber-rich always have schemes for trying to restore youth; from “clinics” in South America, to this.
I consider any “science” that proves blood transfusions work to restore youth, to be suspect, if they are funded by the rich themselves.
If this really worked, why not transplant marrow so that the recipient can always have “young blood”?
Moreover, “new” blood cells are always “young”.
The whole thesis is a charade, imho