Adverse effects of late sleep on physical health in a large cohort of community-dwelling adults

Among 73,888 adults, late sleep timing is associated with an increased risk of various physical health disorders.

• Morning types who go to sleep late have a higher risk of metabolic disorders, diabetes, obesity, hypertension, circulatory disorders, digestive disorders, respiratory disorders, and all-cause cancer.
• Evening types who align their sleep with late timing show a lower risk of diabetes, obesity, hypertension, circulatory disorders, and respiratory disorders when they sleep early.
• Cross-sectional and longitudinal analyses confirm the associations between chronotype, sleep timing, and physical health outcomes.
• The findings suggest that late sleep timing may contribute to negative physical health effects across different chronotypes.

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