Bipolar Equates to Over-achieving?

(PhysOrg.com) -- The Greek philosopher Aristotle once said "there is no great genius without a mixture of madness," and now there is some scientific evidence that there is a link between mania and high IQ and creativity, since a study of over 700,000 subjects showed those who scored the highest grades were almost four times more likely to develop bipolar disorder in their adult lives than those scoring average grades.