Night Owls Face Higher Emotional Dysregulation Risks, Study Finds

A recent study has uncovered strong links between evening chronotype—commonly known as being a 'night owl'—and emotional dysregulation. Researchers surveyed over 2,000 adults in Italy, revealing that those who prefer later bedtimes face higher risks of mood-related challenges. The findings also highlight how sleep quality and lifestyle habits influence mental health outcomes.

The study examined 2,031 Italian adults, categorising them by sleep preferences. Results showed 22.8% identified as evening types, 22.2% as morning types, and the remaining 55% as neutral. Evening chronotypes were far more likely to report emotional dysregulation compared to the other groups.

Further analysis revealed that evening types scored higher on measures of depressive, anxious, irritable, and cyclothymic temperaments. These traits are often linked to bipolar vulnerability. When adjusting for other factors, only evening chronotype and tobacco use remained strong predictors of subthreshold bipolar features. Interestingly, good or excellent sleep quality acted as a protective factor. Those with better sleep showed fewer signs of bipolar-related traits. The study also noted that around one in three adults in the UK and similar proportions across Europe identify as night owls, suggesting broader implications for public health.

The research confirms that evening chronotype is tied to greater emotional instability and mood disorder risks. Poor sleep and tobacco use further increase these vulnerabilities, while high sleep quality appears to mitigate them. These findings could help shape mental health strategies targeting sleep patterns and lifestyle factors.