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I heard that people with high IQs stay up late. I found this article which in turn refers to this study:
- S. Kanazawa, K. Perina, Why night owls are more intelligent, Personality and Individual Differences 47 (2009) 685–690
More intelligent children are more likely to grow up to be nocturnal adults who go to bed late and wake up late on both weekdays and weekends
Is the science sound? I find this strange because there is the claim that successful people get up early.