Me worry? Correlation is not causation. From Slate.
Scary Smart: Do intelligent people worry more?
If you worry a lot, fear not—your anxiety just might be a sign of high intelligence. The idea has been around for a while: The adage that ignorance is bliss suggests the reverse, that knowledge involves anguish. Now it’s starting to get some scientific validation.
In a recent study, for instance, psychologist Alexander Penney and his colleagues surveyed more than 100 students at Lakehead University in Ontario, Canada, and asked them to report their levels of worry.
The researchers found that students with more angst—for instance, those who agreed with survey statements like “I am always worrying about something”—scored higher on a verbal intelligence test.