A new study published in the journal Personality and Individual Differences suggests that students who stay up late in the night tend to display anti-social personality traits.
The study was conducted by researchers at University of Western Sydney who assessed over 250 people in order to find out whether staying up late in the night was linked to narcissism, Machiavellianism and psychopathic tendencies, also known as the dark triad of personality traits.
The researchers found that late nights encouraged mate poaching, casual sex, and risk-taking to which the dark triad traits are linked.
"Those who score highly on the dark triad traits are, like many other predators, creatures of the night. There is likely to be a co-evolutionary arms race between cheaters and those who wish to detect and punish them, and the dark triad traits may represent specialized adaptations to avoid detection", lead researcher Dr Peter Jonason said.