Research

Hormonal

Circadian rhythm disruption (caused by artificial light, shift work, and irregular eating) is a primary underlying etiological factor for the clustering of metabolic risk factors (obesity, T2DM, CVD) and comorbidities (depression, sleep disturbance), constituting the 'Circadian Syndrome'.

Treat your body's internal clock as a primary health lever. Align your sleep, eating, and light exposure with natural day/night cycles. Minimize artificial light at night, avoid late-night eating, and prioritize consistent sleep times to support metabolic health and reduce the risk of chronic diseases like diabetes and heart disease.

ModerateSupportsMEDIUM confidence
Based on this, we now propose that circadian disruption may be an important underlying aetiological factor for the Metabolic Syndrome and we suggest that it be renamed the ‘Circadian Syndrome’.
Paul Zimmet et al. · Journal of Internal Medicine · 2019

Why this rating

This is a review paper proposing a new conceptual framework ('Circadian Syndrome') based on existing observational and mechanistic studies, not a single clinical trial.

Source

The Circadian Syndrome: is the Metabolic Syndrome and much more!

Paul Zimmet et al. · Journal of Internal Medicine · 2019

DOI 10.1111/joim.12924

narrative_reviewCited 366×
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DOI resolved against Crossref · corpus check 2026-06-10

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