​Slow, prolonged breathing is a symptomatic treatment method for anxiety disorders, panic disorders, and hyperventilation symptoms, and affects parasympathetic nerves and heart rate variability (HRV), and also lowers anxiety and tension in the brain center through the vagus nerve
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In addition to the hyperactivity of the amygdala, which is the anxiety center of the brain, the decrease in the control function of the frontal lobe to the amygdala also aggravates anxiety, so the function of the prefrontal lobe is upgraded through attention training such as working memory