The researchers asked 10,000 German men between the ages of 18 and 30 how often they had sex per month. The results were four to ten times for today’s men compared to 18 to 22 times for men in the same age group 30 years ago.
The disparity for older men is even greater. In the 1970s men aged 31 to 40 had sex eight to twelve times a month, compared to three to six times a month for today’s men.