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31
Jul 10
Sat

Night owls

A study by a psychologist observes that night owls tend to have higher IQs, and appears to postulate that “we must now rely on general intelligence to override our early-to-bed instincts. So those with more of it stay up later.” This is a bit bizarre. Might it be that people with higher IQs simply tend to be in professions which demand longer working hours, so they get used to sleeping later?

Night Lights
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.

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