The human brain operates through billions of chemical conversations per second. Eight major neurotransmitters regulate mood, cognition, and behaviour—and understanding their function reveals how sleep, stress, diet, and trauma directly shape mental health. — Photo by Shawn Day on Unsplash (Unsplash License)
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.