A roundup of new and noteworthy insights from the week’s most talked-about studies:
Millennials are having less sex than other generations
A study published in the Archives of Sexual Behavior found that millennials born in the 1990s were at least twice as likely to be sexually inactive as Gen X-ers were when they were in their early 20s. Experts have suggested it’s because younger women feel more empowered to say no and because younger people in general find it harder to make deep romantic connections.
Volunteering is good for your mental health
A report published in the journal BMJ Open found that people who volunteered had higher levels of mental health and well-being than those who did not. This was especially true for people over 40.
Nature scenes might make prisoners less violent
A study presented at the 12th annual American Psychological Association convention found that inmates who were shown videos of sights like forests and rivers had 26% fewer violent infractions than inmates who did not watch the videos.
This appears in the August 22, 2016 issue of TIME.