28 citations
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June 2015 in “Journal of circadian rhythms” This study found that extreme morning and evening chronotypes exhibited significant differences in the timing of circadian clock gene expression in hair follicle cells.
November 2025 in “DOAJ (DOAJ: Directory of Open Access Journals)” This study suggests potential bidirectional causal links between certain sleep traits, like insomnia and reduced sleep duration, and types of alopecia, including alopecia areata; however, these associations did not hold after correcting for multiple tests, warranting cautious interpretation.
36 citations
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July 2016 in “Scientific reports” This study found that decision-making effects related to time of day and chronotype were only significant when using RNA-based chronotype measurements, indicating molecular clock differences may influence these behaviors.