Announcement: The Master Clock: How Your Brain’s Circadian Rhythm Controls Sleep, Hunger, and Mood

Last updated: 13/08/2026 03:30

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Your brain contains a master clock—the suprachiasmatic nucleus—that controls every major physiological process across a 24-hour cycle. Light, food timing, and sleep schedules determine whether this system stays synchronised or falls into dysfunction, affecting sleep quality, metabolism, and mental health. — Photo by insung yoon on Unsplash (Unsplash License)

1 min read|51 words

Your brain has a master clock—the suprachiasmatic nucleus—that controls sleep, hormones, hunger, and metabolism on a 24-hour cycle. Light exposure, meal timing, and sleep schedules determine whether this system stays synchronised or falls into dysfunction. Learn how circadian science affects your health. 🧠⏰

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GMJ Brief · Announcement

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ByProf. Giorgi Pkhakadze

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Prof. Giorgi Pkhakadze, MD, MPH, PhD, is Editor-in-Chief of the Georgian Medical Journal and Chair of the Public Health Institute of Georgia (PHIG). He is Professor and Head of the Department of Social and Behavioural Sciences at David Tvildiani Medical University, and Secretary/Treasurer of the UEMS Section of Public Health. ORCID: 0000-0001-7609-4515.

Announcement: The Master Clock: How Your Brain’s Circadian Rhythm Controls Sleep, Hunger, and Mood

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