Illuminating the influence of natural daylight on human metabolism.

Lempesis, Ioannis G; Scheer, Frank A J L · Cell Metab · 2026

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Abstract

Humankind currently lives largely under artificial light, potentially negatively impacting circadian-metabolic alignment and predisposing it to diseases. Harmsen et al.<sup>1</sup> show that natural daylight exposure during office hours improves several metabolic parameters including glucose regulation, enhancing fat oxidation, and advancing muscle-clock circadian phase in individuals with type 2 diabetes.

Medical subject headings