Mr Johnson, a former Silicon Valley executive, is known for his obsession with anti-ageing. He developed Blueprint as a platform to explore cutting-edge methods for reversing ageing. The 45-year-old has garnered attention for his radical experiments, including receiving blood transfusions from his teenage son. He spends $2 million a year on medical diagnostics and treatments combined with a meticulously crafted regimen of eating, sleeping, and exercising to see if he can slow, and perhaps even reverse, the ageing process.