There has been research done which shows men today have substantially less testosterone than several decades ago. It's been declining by about 1% per year since the 1980's (quick google search can reveal the information). Therefore men have become less masculine and more feminine over the years.

In contrast, women are more masculine today than they were several decades ago, perhaps due to changes in their hormones or perhaps due to social pressures and the feminist movement.

How has this impacted modern dating and relationships? And do you think this has been a good or bad thing? The fact that many women complain that there is a shortage of "real men" perhaps indicates that it's been a bad thing, although I'm not sure.