Farming young humans to expand the lifespan of old rich ones has a little bit of a je ne sais quoi though.
Just kill the donors as soon as possible to end their suffering, then /s
I don’t know who that is and I’m sure he couldn’t have transfused “blood”. But parabiosis experiments in mice uncovered that certain components present in young blood (like PF4) can be beneficial.
It's not complete nonsense. The rejuvenating effects of young blood transfusions have been known for some time.