3 ms·

There are many signs that testosterone levels today are considerably lower than they have been in the past[1]. [1] http://thechart.blogs.cnn.com/2011/08/18/mod

• jpm_sd 9y ago
  Some research suggests that this is due to endocrine disruptor (female hormone mimicking) pollutants.
  • TheAdamAndChe 9y ago
    It could be due to all sorts of things, like lower lead levels, endocrine disruptors like BPA, lower smoking rates, social and cultural affects that view masculine traits negatively, lower personal autonomy, declining quality of life for most lower and lower-middle class men, and many similar possibilities.