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GMJ News > GMJ Briefs > Announcement: How Brain Chemistry Shapes Mood, Sleep, and Focus: A Guide to Neurotransmitters

Announcement: How Brain Chemistry Shapes Mood, Sleep, and Focus: A Guide to Neurotransmitters

GMJ
Last updated: 10/08/2026 19:29
By
Prof. Giorgi Pkhakadze
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Illustration of neurotransmitter signaling between brain cells showing dopamine, serotonin, and GABA pathways
Neurotransmitters—chemical messengers between brain cells—regulate mood, sleep, motivation, and cognitive focus. Understanding these twelve major signaling systems explains why lifestyle and targeted interventions improve mental and physical health. — Photo by Shane on Unsplash (Unsplash License)
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1 min read|55 words

Your mood, sleep, and motivation all depend on 12 major neurotransmitters—chemical messengers in the brain. Serotonin stabilizes mood, dopamine drives motivation, and GABA promotes calm. When these systems work in balance, you thrive. When they dysregulate, functional symptoms emerge before disease. Understanding brain chemistry empowers better health decisions. 🧠

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GMJ Brief · Announcement

📰 Read the full article: How Brain Chemistry Shapes Mood, Sleep, and Focus: A Guide to Neurotransmitters →

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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.

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