For some reason, a short 2009 article on the correlation between IQ and sleeping habits has been circulating the blogsphere. Having long been a night owl, I like these findings! The article reports the following:
Bedtimes and wake-up times for Americans in their 20s by IQ
Very Dull (IQ < 75)
Weekday: 11:41 P.M.-7:20 A.M.
Weekend: 12:35 A.M.-10:09 A.M.
Normal (90 < IQ < 110)
Weekday: 12:10 A.M.-7:32 A.M.
Weekend: 1:13 A.M.-10:14 A.M.
Very Bright (IQ > 125)
Weekday: 12:29 A.M.-7:52 A.M.
Weekend: 1:44 A.M.-11:07 A.M.
Of course the fact that this study is limited 20 somethings introduces a huge bias. It would be interesting to see if this correlation holds in other age groups.
And I'm not really sure about the IQ < 75 demographic - wouldn't most of them be institutionalized and have and enforced bedtime - not being facetious but that is getting close to functionally impaired.
And I just noticed that there is no data for the 110 < IQ < 125 demographic ...mmmm
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