If I could afford it, and if it really work, I'd be a vampire, too. Pay some young people to donate a bit of their blood to a facility, get a transfusion, and you might retain your youth for longer, with a longer quantity of life and longer + higher quality of life? I'm below 30 now, but I'd sign up for such a thing without hesitation even if it bankrupted me - if it truly works and is safe.

Of course it'll be many years or decades before we have any real clarity on that, but if it works, and if it's a negligible, non-risky amount of blood donated by each person which also isn't risky for the recipient, and if it can be afforded, it really feels very ignorant not to sign up, to me. They just need to lower the costs so ordinary people can easily partake as well, not just super wealthy people.