Summary #1472

'Night owls' may be twice as likely as morning 'larks' to underperform at work

eurekalert.org
  • Whether you perform best in the morning or evening depends on your chronotype - ‘larks’ work early, ‘night owls’ work late.
  • Because night owls go to sleep later but have to get up early with everyone else, they incur sleep debt and need catch-up sleep on non-work days, which is bad for health.
  • To explore this, researchers used data from a 1966 Finland birth cohort study, initially consisting of 12,058 children.
  • At age 46, 2672 men and 3159 women from the study were questioned about their chronotypes in 2012, and monitored for 4 years afterwards.
  • Compared to larks, owls had worse ratings for variables related to sleep and health, and were twice more likely to underperform at work.

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