Where Has All the Testosterone Gone?

The Trump administration seems to harbor a hulking obsession with testosterone. Health Secretary Robert F. Kennedy Jr. once claimed that the president’s testosterone levels are unusually high for a man of his age, and Kennedy is known to take a supplementary dose of the male sex hormone himself. In April, the FDA moved to expand access to testosterone-replacement therapy for greater numbers of men. And last month, Defense Secretary Pete Hegseth announced that “warfighters” older than 30 will…