Male testosterone levels halved in 50 years, scientists warn of fertility crisis
Average testosterone levels in men have dropped by half over the past five decades, leading researchers to warn of a male fertility crisis. Contributing factors include obesity, diabetes, endocrine-disrupting chemicals, and climate change.
Scientists have reported that average testosterone levels in men have halved over the past 50 years, warning that society is facing a male fertility crisis. The study points to rising rates of obesity and diabetes as contributing factors, but also highlights environmental influences such as endocrine-disrupting chemicals found in many household products and global heating.
In a podcast interview with The Guardian's science correspondent Hannah Devlin, journalist Ian Sample explored how the research has been received and what the scientists hope will happen next. The researchers are calling for action to address the apparent decline, which could have far-reaching implications for male reproductive health and overall well-being.
The findings have sparked discussion about the need for further investigation to pinpoint all causes and develop strategies to mitigate the trend. The team behind the work emphasizes the urgency of the situation, as declining testosterone levels may affect not only fertility but also other aspects of men's health.
