00:00A hidden warning in a routine blood test could matter years later.
00:03A major international study examined more than 26,000 men.
00:08The researchers analyzed hormone levels from 11 long-running studies.
00:12They found a concerning link involving very low testosterone.
00:16Men in the lowest testosterone group had an 18% higher risk of dying from cancer.
00:22Cancer risk also began rising when testosterone fell below 8.6 nanomoles per liter.
00:27But researchers stress this does not mean low testosterone causes cancer.
00:32Instead, it may be a marker of other underlying health problems.
00:36And there was one major exception.
00:39Prostate cancer showed no link to testosterone levels.
00:42Experts say men with low testosterone should seek a full medical checkup.
00:46They also warn against using testosterone supplements to prevent cancer.
00:51The findings could help researchers better identify men at higher long-term health risk.
00:56Disclosure.
00:57This video contains stock footage and content created or enhanced using AI-assisted tools AI generated.
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