# Low Testosterone Linked to 18% Higher Cancer Mortality Risk International study identifies low testosterone as a potential early biomarker for future cancer outcomes. - **Source:** [ScienceDaily – Fitness](https://www.sciencedaily.com/news/health_medicine/fitness) - **Published:** 2026-11-08 - **Topic:** [health](https://brifing.si/c/health) - **Original article:** - **On Brifing:** https://brifing.si/s/a9442608-e33b-4fde-bdfc-56b0fbf7199e ## Hormonal Links to Mortality A major international study involving 26,000 men reveals that low testosterone levels are associated with an 18 percent higher risk of dying from cancer. Researchers analyzed blood samples collected over decades to track long-term health outcomes. This finding suggests that hormone concentrations could serve as early indicators for future health risks. ## Study Methodology and Scope The Androgens In Men Study, led by Professor Bu Yeap at The University of Western Australia, utilized data from 11 long-running projects. Published in Lancet Healthy Longevity, the research spanned participants across Australia, the United States, and Europe. Scientists compared baseline hormone measurements with cancer diagnoses recorded over several subsequent decades. ## Defining the Risk Threshold Researchers identified a specific concentration threshold where cancer risk begins to rise. When baseline testosterone levels fall below 8.6 nanomoles per liter, the risk of cancer mortality increases significantly. Typically, healthy younger men maintain levels between 10 and 30 nanomoles per liter, though these concentrations naturally decline as men age. ## Prostate Cancer Pattern Differences Surprisingly, the study found no link between natural testosterone levels and prostate cancer risk. Instead, prostate cancer was associated with low levels of sex hormone-binding globulin and luteinizing hormone. This distinction is medically significant because lowering testosterone is a standard treatment for prostate cancer, yet natural levels do not predict disease. ## Biomarkers and Health Evaluation Testosterone levels can be influenced by modifiable factors like body mass index, physical activity, and underlying medical conditions such as diabetes. Because low testosterone acts as a biomarker, it may help doctors identify men who face greater health risks. These measurements provide a window into a patient's overall systemic health status. ## Caution Regarding Supplementation Professor Yeap emphasized that these findings do not support taking testosterone supplements to prevent cancer. While low levels correlate with higher mortality, there is currently no evidence that artificial supplementation reduces this risk. The study highlights an association rather than a causal mechanism, requiring further investigation into the underlying biological pathways. ## Clinical Recommendations for Men Men found to have low testosterone should seek a full medical checkup rather than immediate hormone therapy. Such results may indicate other health issues or risk factors that require professional attention. A low reading serves as a potential wake-up call to adopt healthier lifestyle behaviors and engage in regular, holistic monitoring. ## Future Research Directions The study underscores the complexity of male reproductive hormones and their broader impact on long-term health. By distinguishing between various hormones, researchers aim to better understand how to identify men at risk. Future efforts will likely focus on whether addressing these underlying health factors can effectively mitigate the observed cancer mortality. ## Sources covering this story - https://www.sciencedaily.com/releases/2026/11/261104012301.htm — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._