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Medical Guide

A deep breath is happiness

Written by: Dr. Kerem Çağlayan Medically reviewed by: Dr. Kerem Çağlayan First published: November 12, 2022 Last updated: September 28, 2026
A deep breath is happiness
Short answerWhen you take a deep breath, you contract your diaphragm; this action stimulates your vagus nerve. The vagus is the most important nerve of the parasympathetic system. In other words, you activate the parasympathetic system
When you take a deep breath, you contract your diaphragm; this action stimulates your vagus nerve. The vagus is the most important nerve of the parasympathetic system. In other words, you activate the parasympathetic system and lower your body’s pace and stress hormone levels. This method, which is also one of the secrets of meditation, provides natural relaxation by also increasing serotonin levels.

Medical editorial information

This content has been medically reviewed and approved by Dr. Kerem Çağlayan. It is intended for general education and does not replace an individual diagnosis or treatment plan.

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