Did you know The surprising downsides of being clever? Is Happiness And Intelligence: Rare Combination? There are longitudinal studies which seem to imply this: Being Labeled as Gifted, Self-appraisal, and Psychological Well-being: A Life Span Developmental Perspective
I found these via slashdot.
As LessWrong is harbor to unusually high-IQ people (see section B in here). I wonder how happiness compares to the mean. What are your thoughts.