Research

Hormonal

Evening chronotype is independently associated with a higher prevalence of diabetes, metabolic syndrome, and sarcopenia in middle-aged adults, even after adjusting for sleep duration and lifestyle factors.

If you naturally prefer staying up late, be aware that this biological trait is linked to higher risks of diabetes, metabolic syndrome, and muscle loss, regardless of how many hours you sleep. To mitigate this, focus on circadian alignment: prioritize consistent sleep/wake times, limit exposure to bright artificial light at night, and try to align your largest meals with your active daytime hours rather than late at night.

GoodSupportsHIGH confidence
Evening chronotype was independently associated with diabetes, metabolic syndrome, and sarcopenia. These results support the importance of circadian rhythms in metabolic regulation.
Ji Hee Yu et al. · The Journal of Clinical Endocrinology & Metabolism · 2015

Why this rating

Large population-based cohort (n=1620) with rigorous adjustments for confounders, but cross-sectional design limits causal inference.

Source

Evening Chronotype Is Associated With Metabolic Disorders and Body Composition in Middle-Aged Adults

Ji Hee Yu et al. · The Journal of Clinical Endocrinology & Metabolism · 2015

DOI 10.1210/jc.2014-3754

cross_sectional · n=1620Cited 363×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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