The Pentagon has introduced mandatory testosterone screening for active-duty service members aged 30 and older, a move announced by US Defence Secretary Pete Hegseth on July 31, 2026. Hegseth stated the policy aims to strengthen combat readiness by ensuring troops remain “strong, resilient and capable.” He emphasized that the initiative is focused on maintaining “maximum psychological and mental readiness” and clarified it has “nothing to do with artificial enhancement.”

Male hormone decline is recognized as a global issue, raising concerns in multiple countries including China. Some Chinese experts argue that long-term shifts in hormone levels could influence future military strategies. A urologist at Shanghai First People’s Hospital, one of mainland China’s leading hospitals, told the South China Morning Post, “From now on, it will all be robot wars.” The doctor, who requested anonymity due to the sensitivity of the topic, added, “No matter how developed the muscles of carbon-based life forms are, they can’t defeat robots.”

This perspective underscores a growing belief that advancements in robotics may redefine warfare, especially as physiological factors like hormone levels evolve globally.

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