Men's average testosterone levels have halved in last 50 years
3 hours ago
- #testosterone decline
- #environmental factors
- #male fertility
- Men's total testosterone levels declined by 54% between 1972 and 2019, indicating a significant drop over 50 years.
- Potential causes include rising obesity, diabetes, environmental factors like endocrine-disrupting chemicals, and global heating.
- Scientists warn of a male fertility crisis, with declining sperm counts and reproductive health receiving insufficient attention.
- The decline is consistent across studies, accelerating after 2000, but obesity may account for a quarter to half of the drop.
- Environmental factors are suspected but need more research, with calls for precautionary measures against hazardous chemicals.
- Testosterone supplements are increasingly promoted but can suppress sperm production, complicating potential solutions.