Worrying About Stuff May Be A Sign Of Intelligence (Your Mother Is Totally Vindicated)

“Correlation doesn’t imply causation, of course, but this is not the first paper to have found a link between anxiety and intelligence. On the other hand, Penney and his colleagues also found an interesting association in the other direction: The more respondents said they replayed past events over in their minds, the lower they ranked on non-verbal intelligence.”