U.S. Secretary of War Pete Hegseth says new initiative "not about artificial enhancement" as service members have come under scrutiny in recent years for using testosterone and similar substances to boost performance.

Defense Secretary Pete Hegseth says the screening will be mandatory for soldiers above a certain age.

Pentagon would not offer specific conditions or diseases that were being targeted

Soldiers aged 30 and older are required to be tested annually for testosterone as part of their existing health assessment.