The title of this article from the Science of Us says it all:
Men Would Rather Give Themselves Electric Shocks Than Sit Alone With Their Thoughts .
Most people don’t think it’s fun to sit alone with nothing to do but think — it’s part of the reason for obsessive phone-checking during idle moments. A new study in Science highlights just how unenjoyable this experience is: in short, very. To the point that some people will choose to shock themselves rather than sit alone with nothing to do for a little while.
Among the participants who said they’d pay to avoid being shocked again (meaning those who found it particularly unpleasant), 67 percent of men and 25 percent of women nonetheless shocked themselves rather than face, without distraction, what is apparently a terrifying hellscape inside their heads. The researchers suggest the gender difference could come down to men having greater sensation-seeking tendencies than women — that is, they get bored more easily.
The article goes on to suggest that mindfulness training can help reduce the unpleasantness of time alone. It is certainly true that people coming to a retreat house can be disturbed at first by the experience of time by themselves without distraction  but later come to enjoy it. I wonder if the findings account in part for the greater number of women who go on retreat?