From the paper:
Relative to the average, IQ was higher among the philosophers and imaginative writers, but lower among the commanders, composers, and artists.
commanders, enjoyed a level of early physical health substantially above the average. [...] Second, one domain stands out as being the lowest in mental
health: the imaginative writers.
Psychological Science doi:10.1111/j.1467-9280.2009.02313.x
Eminence, IQ, Physical and Mental Health, and Achievement Domain: Cox's 282 Geniuses Revisited
Dean Keith Simonton and Anna V. Song
Catharine Cox published two studies of highly eminent creators and leaders, the first in 1926 as the second volume of Terman's landmark Genetic Studies of Genius and the second in 1936 as a coauthored article. The former publication concentrated on the relation between IQ and achieved eminence, and the latter focused on early physical and mental health. Taking advantage of unpublished data from the second study, we examined, for the first time, the relationships among achieved eminence, IQ, early physical and mental health, and achievement domain. The correlation and regression analyses showed, for these 282 individuals, that eminence is a positive function of IQ and that IQ is a positive function of mental health and a negative function of physical health, implying an indirect effect of physical and mental health on eminence. Furthermore, levels of early physical and mental health vary across 10 specific domains of achievement.