• The study found that individuals who identify as night owls, or those who prefer to stay up late and wake up later, showed higher cognitive performance compared to early birds, or those who prefer to go to bed and wake up earlier. The researchers suggest that this may be due to the fact that night owls have a better alignment between their internal circadian rhythms and the timing of their cognitive tasks.

• The study involved 38 participants who completed a series of cognitive tests at different times of the day. The results showed that night owls performed better on tasks that required higher-order cognitive abilities, such as problem-solving and decision-making, during the evening hours, while early birds performed better on these tasks in the morning.

• The findings have important implications for understanding individual differences in cognitive performance and the role of circadian rhythms in shaping cognitive abilities. The researchers suggest that employers and educational institutions should consider accommodating the preferences of night owls to optimize their cognitive performance and productivity.