US military to screen troops for testosterone deficiency to ensure peak combat readiness

The U.S. military is initiating a new screening program to detect testosterone deficiency among service members aged 30 and above. This measure, announced by Secretary of War Pete Hegseth, is intended to ensure soldiers remain in "absolute peak condition." The annual screening will be mandatory for those 30 and older, while younger service members can opt-in for testing.

Hegseth stated the program aims to keep troops "strong, resilient, and combat-ready," emphasizing the demanding nature of modern warfare requires maximum psychological and mental preparedness. The Pentagon has not specified the exact conditions the policy targets, but Hegseth's remarks suggest a focus on maintaining physical and mental capabilities.

This initiative emerges at a time when other Trump administration officials are advocating for easier access to testosterone replacement therapy. However, Hegseth's framing appears to blend established hormonal science with less empirically supported claims. The Pentagon has not provided specific research to back the policy, nor has it addressed whether female service members will undergo similar screenings for estrogen decline during menopause.

The program follows past controversies, particularly concerning Navy SEALs and other special forces units. Investigations into performance-enhancing substance use, including testosterone, intensified after a SEAL trainee's death in 2022 revealed widespread drug abuse within the elite unit. In response, the Navy announced a drug testing program for anabolic and related muscle-building hormones.

While the natural decline of testosterone with age is linked to various issues like erectile dysfunction and mood changes, expert opinions on diagnosis and hormone replacement therapy remain divided. Recent research has offered some support for testosterone's benefits in specific conditions, and the FDA has proposed easing restrictions on testosterone products, removing a previous black box warning about potential cardiovascular risks.