Summary

Bryan Johnson, a 46-year-old tech multimillionaire focused on anti-aging, stopped using rapamycin—a supplement he took for five years—after research suggested it might accelerate aging.

Johnson cited side effects like skin infections and glucose issues, as well as findings from a recent study showing rapamycin could worsen epigenetic aging.

Known for extreme anti-aging experiments, Johnson also created the health startup Blueprint, which markets pricey supplements.

His controversial methods, including teenage blood transfusions and genital shock treatments, have raised skepticism about their effectiveness and safety.