A study found that people who use condoms have poorer mental health ^[1] than those who do not:

A leading Scottish psychologist has claimed that condom use is associated with poorer mental health, problems with stress and depression, saying his research shows the natural conjugal act can significantly boost the mental wellbeing of men and women.

But my favorite line was the following:

“The more often people are using condoms independent of age, independent of the nature of their relationship, the greater use of immature defense mechanisms against stress”

So using an immature defense mechanism against parenthood leads to a greater use of immature defense mechanisms against stress. Who’d have thunk it?