Perhaps people with superior IQs think and stress a lot. I recently came across the work of Dr. Robert Sapolsky and his research highlights the long term effec

Perhaps people with superior IQs think and stress a lot. I recently came across the work of Dr. Robert Sapolsky and his research highlights the long term effects of chronic stress. It is possible that higher IQs lead to a lot of thinking and stressing out. I can safely consider myself in the above average IQ bracket and I tend to stress a lot about things as obscure as the world's oceans, climate, politics, science, the Arctic ice, etc. My brother is less inclined academically, is of a very easy going nature and always seems to be happy, with the exception being during difficult times in his business.