Late Bedtime Was Associated With Increased Androgen And Reduced Lean Mass In Women With Polycystic Ovary Syndrome: A Cross-Sectional Study

    July 2025 in “ Journal of Ovarian Research ”
    Yuqin Zhang, Min Zhang, Meili Cai … Manna Zhang
    Studysummary This study found that among women with PCOS, a bedtime after midnight was independently linked to higher androgen levels and decreased lean muscle mass.
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    Research cited in this study 4

    1. Polycystic Ovary Syndrome Nature Reviews Disease Primers · 2024
    2. Polycystic Ovarian Syndrome: Correlation Between Hyperandrogenism, Insulin Resistance, and Obesity Clinica Chimica Acta · 2019
    3. Effects of Melatonin Administration on Mental Health Parameters, Metabolic and Genetic Profiles in Women with Polycystic Ovary Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial Journal of Affective Disorders · 2019
    4. Revised 2003 Consensus on Diagnostic Criteria and Long-Term Health Risks Related to Polycystic Ovary Syndrome (PCOS) Human Reproduction · 2003