A news report on a new study says:
Men experiencing a pronounced, age-related decline in testosterone level are more likely to die of any cause during a 15-year period vs. men who have testosterone levels in the 10th to 90th percentile, according to findings reported in the European Journal of Endocrinology. Researchers measured levels of testosterone, sex hormone-binding globulin and luteinizing hormone at baseline and follow-up, and then followed the cohort for up to 18 years (mean, 15.2 years) using data from national mortality registries. Researchers observed that men who experienced the most pronounced decline in total testosterone — men in the lowest 10th percentile — saw the greatest increased risk for all-cause mortality. “A possible causal link between an increased tempo in age-related [testosterone] decline and subsequent health is unknown and remains to be investigated,” the researchers wrote.