Meet Your Vagus Nerve: A Key Pathway Linking Brain, Body and Behavior

Video

Published: December 11, 2025

speaking with

The vagus nerve sits at the crossroads of brain–body communication, shaping how we regulate stress, inflammation and core physiological functions. While the vagus nerve profoundly influences health and behavior, its function is often poorly understood or oversimplified, creating a disconnect between the scientific evidence and its practical relevance.

In this Teach Me in 10, Dr. Hannah Holmes, Clinical Assistant Professor at Appalachian State University, breaks down the anatomy, function and impact of the vagus nerve.

Watch this episode to explore:

How vagal pathways support heart rate, digestion and emotional regulation
Why the vagus nerve is central to stress recovery and overall well-being
The bidirectional signals that link physical states and psychological experience

Want to learn more about the vagus nerve?

Structure and Functions of the Vagus Nerve in Mammals

Meet the Author

Rhianna-lily Smith

Science Writer and Editor

Rhianna-lily graduated from the University of East Anglia with a BSc in biomedicine and completed her MSc by Research in microbiology at the Quadram Institute Bioscience in 2023. Her research primarily focused on the gut microbiome in pregnant women throughout gestation. During her MSc, she developed a passion for science communication and later joined Technology Networks as a Science Writer and Editor, where she works with the news team to cover the latest breaking news and produce Teach Me in 10 videos.

Interviewing

Hannah Holmes, PhD

Clinical Assistant Professor

Dr. Hannah Holmes is a licensed psychologist, professor and consultant specializing in health psychology, anxiety, chronic pain and women’s health. She is also an experienced writer and public communicator featured in Psychology Today and other major outlets.