WASHINGTON (AP) — Defense Secretary Pete Hegseth announced Wednesday that he is rolling out a new screening program for “testosterone deficiency” among troops, calling it necessary to allow them to operate at their “absolute best.”

The screenings will be conducted annually as part of service members’ required medical screenings for those 30 and older, he said. Troops under 30 can volunteer to be tested. In a video on social media, Hegseth said receiving testosterone replacement therapy would be voluntary.

“Under the supervision of our world-class medical professionals, war fighters age 30 and older are going to be tested annually as part of their periodic health assessment,” Hegseth said in a video captioned: “The High-T Department of War.”

He added that if the medical team recommends treatment for a service member, it would be that individual’s decision whether to receive testosterone replacement therapy.

“This initiative — it’s not about artificial enhancement; it’s about restoring and optimizing your natural capabilities, protecting your longevity, and ensuring you have the biological foundation required to sustain the fight,” Hegseth said.

In the video, Hegseth simply refers to troops, though it appears he is talking about only testing men in uniform for hormone irregularities.

The move comes as other Trump administration officials have begun to advocate for men to have easier access to testosterone replacement therapies, but the messaging from Hegseth and others blends known science on the hormone with broader, and less substantiated, claims.

Read the full Associated Press report.