A biohacking tech guru from California has abandoned his 'blood boy' project after finding no benefits in injecting his teenage son's blood for anti-aging purposes. Bryan Johnson, the 45-year-old billionaire who sold his business Braintree Venmo to PayPal for $800 million, had enlisted his 17-year-old son Talmage and 70-year-old father Richard for the blood swapping treatment.

However, imaging and biomarker testing showed no positive effects of the exchange with his son, leading Johnson to remove it from his anti-aging protocol. Johnson spends an astonishing $2 million per year in his quest for eternal youth, following a strict daily routine that includes consuming 80 vitamins, eating 70 pounds of pureed vegetables, and exercising with 25 different exercises.

Despite the failed blood swapping experiment, Johnson still claims to have the health of a much younger person. The idea to inject young blood for anti-aging purposes came from animal studies, but it has not been scientifically tested in humans. The FDA has also warned against such treatments, stating that there is no proven clinical benefit and that further testing and regulatory oversight are necessary.