US Defence Secretary Pete Hegseth has announced that all military personnel aged 30 and over will be screened for testosterone deficiency as part of their annual health checks. Those found to have low testosterone levels will be offered voluntary testosterone replacement therapy.

Service members under 30 will be able to opt in for testing. The Pentagon is silent on whether hormone replacement therapy will be available to women.

The move follows a broader push by the Trump administration to make it easier for medical professionals to prescribe testosterone to men.

The BBC's Gary O'Donoghue examines what the policy reveals about Hegseth's vision for a more "manly" military.