Individuals with a natural preference for late nights and late mornings—known as night owls—have a 10% higher risk of dying prematurely compared to early birds, according to a landmark study involving nearly 500,000 participants. Over the 6½-year follow-up period, night owls showed elevated mortality, with around 50,000 in the sample more likely to pass away. Researchers also observed higher rates of diabetes, mental health disorders, and neurological conditions among night owls.
Genetics and environmental factors contribute equally to whether someone leans toward mornings, evenings, or in between, as prior research from the study authors indicates. To shift toward earlier rhythms, experts recommend morning light exposure while minimizing evening light. Maintain a consistent bedtime, prioritize healthy habits aligned with your sleep timing, and front-load daily activities to reduce evening dominance.
