In an interview with The New York Times last month, the prominent American tech entrepreneur Bryan Johnson revealed significant reservations about his high-profile longevity regime. His candid doubts emerged following a diagnosis of a rare autoimmune disorder that causes the stomach lining to attack itself. The development highlights the limitations of his SR37.51 million ($10 million) expenditure over five years — about SR7.50 million annually — in his attempt to slow biological aging. While he
