Spermidine and baby teeth stem cells: the truth behind biohacking from the world’s experts

But equally, I get the point of it. I bump into Floridians Donna and Ken Konopka. Ken has Parkinson’s and is desperate for relief. They have arrived at Sha for exosomes and another therapy which uses the immune system’s evocatively named Natural Killer cells. He will try stem cells soon. I understand why, given how little he has left to lose.

I visit Dr Riveros for the results of my VO2 max. She says I can absorb 34.8 millilitres of oxygen per minute per kilogram of body weight, which is…