A study presented at the European Society of Human Reproduction and Embryology annual meeting in London reveals that average testosterone levels in men have halved over the past 50 years. The data, reported by the Guardian, indicates a 54% decline between 1972 and 2019. Researchers suggest factors such as obesity, diabetes, environmental chemicals disrupting hormone function, and global warming may contribute to this trend. Previous studies from the same research group had already shown a significant drop in sperm counts over the last 40 years. U.S. Secretary of Health Robert F. Kennedy Jr. has described declining male fertility as an 'existential problem.' The report highlights the complex relationship between testosterone and male health, noting that low testosterone levels can result from excess body fat converting testosterone into estrogen.
Bias read (Center): The article presents scientific findings without overt ideological slant, focusing on the correlation between environmental factors and declining testosterone levels. While it mentions political figures like Robert F. Kennedy Jr., the emphasis remains on empirical data rather than advocacy for any政治





