Bryan Johnson is being used as a human guinea pig in unproven tests to reprogram his genes

This report describes one person trying experimental treatments intended to alter gene activity, meaning how genes are switched on or off. It was not a controlled study with many volunteers, a comparison group, or long-term safety checks. Changes in health or aging measures could have many causes, including diet, exercise, and testing differences. There is no reliable evidence here that the treatments reprogrammed genes or extended life.

What this means for you: Do not buy or seek similar treatments based on this report. The approach is experimental, and its risks and benefits remain unknown.