Why smarter people tend to stay up later

For all the night owls getting lectured by early birds, revenge is sweet. Evolutionary psychology suggests that intelligent people are statistically more likely to reject ancestral, sun-based circadian rhythms in favor of nocturnal activity. So while the morning people are aggressively jogging at 5 AM, you can sleep in until noon knowing your terrible sleep schedule is just a byproduct of your massive intellect.