Pete Hegseth wants widespread testosterone testing in the military. Researchers say US men already have a T problem.

The Department of Defense has announced a new policy to support troops' fitness and effectiveness by testing testosterone levels. Kayla Bartkowski/Getty Images Pete Hegseth announced the Pentagon would start testing and treating low testosterone in troops. It's part of the Trump Administration's ongoing efforts to address dwindling T in American men. Researchers say there is a gap in men's health, but young servicemen could risk side effects. The Pentagon's new policy about testosterone…