In a high-profile policy shift tied to his vision of a more “manly” fighting force, United States Defense Secretary Pete Hegseth has unveiled plans for mandatory testosterone screenings for all active-duty military personnel aged 30 and older. The new requirement marks a notable departure from previous military health protocols, framing physical fitness and hormonal balance as central to operational readiness aligned with Hegseth’s public emphasis on traditional masculine standards within the armed services. While details around implementation—including how results will be used, whether screening will be integrated into regular physical examinations, and what accommodations will be made for personnel with low testosterone readings—are still emerging, the announcement has already drawn widespread attention for its intersection of health policy and cultural ideology within the US Department of Defense. The policy is set to roll out across all branches of the military in the coming months, with officials expected to release additional guidance on logistics and privacy protections for service members in the near future.