https://www.sciencedaily.com/releases/2019/05/190508113346.htm

The data show a general decline in sexual activity in Britain between 2001 and 2012, with the steepest declines among the over 25s and those who are married or living together.

There is evidence that regular sexual activity is beneficial to health and wellbeing, but a recent decline has been seen in several high-income countries in the proportion of people who are sexually active, and how often they have sex.