Men’s testosterone levels have fallen by half in last 50 years, scientists warn - Environmental factors like ...

A large meta-analysis, studying five decades, has found a dramatic and sustained decline in testosterone levels among men, raising concerns that the male fertility crisis is deeply misunderstood.

Over the past 50 years, average levels of the male hormone testosterone have fallen by half. Experts warn that male ...

Meta-analysis of data from more than 3,400 patients with hypogonadism from 17 clinical trials finds little evidence that testosterone treatment increases the risk of cardiovascular events such as ...

Testosterone replacement therapy appears safe in the short-to-medium term to treat a condition caused by deficiency of the male sex hormone, according to the most comprehensive analysis of the ...

Men with hypogonadism see no added risk of cardiovascular events when taking testosterone, at least over the relatively short term, a meta-analysis of placebo-controlled, randomized trials suggests.

Testosterone is the main sex hormone in male vertebrates and is part of the steroid group of hormones. It circulates in the bloodstream and accumulates in various tissues. Scientists have previously ...

Something keeps happening to men’s hormones. Across nearly 50 years and five countries, testosterone levels have fallen ...

Testosterone replacement therapy appears safe in the short-to-medium term to treat a condition caused by deficiency of the male sex hormone, according to the most comprehensive analysis of the ...