A recent study has found that people with an evening chronotype, the so-called “night owls” who prefer to go to bed late and wake up late, tend to have a less healthy lifestyle compared to those who wake up early (“larks”). This trend is particularly pronounced after the age of 25 and appears to be linked to sleep disorders and circadian misalignment, such as social jet lag.
Night owls tend to have a higher body mass index (BMI), consume more alcohol and cigarettes, especially if they experience poor sleep quality and a misalignment between their biological clock and social schedules.
The study emphasizes the importance of considering circadian preferences and sleep health when planning interventions to promote healthy lifestyles in young adults.
Bruno, Simone et al. Sleep Health: Journal of the National Sleep Foundation, Volume 0, Issue 0