Sympathetic nerve and parasympathetic nerve are both important contents of autonomic nervous system and have important physiological functions. What are sympathetic and parasympathetic nerves? Sympathetic nerves are located on both sides of the spine and emanate from the spinal cord. The emitted nerve fibers can be distributed to internal organs, blood vessels, glands and other parts. Parasympathetic nerve is different from sympathetic nerve, and its nerve fibers are not distributed in limbs and other parts, but in the vertical muscles of sweat gland, adrenal gland and thyroid gland.
People have positive energy on their right and negative energy on their left. Activating parasympathetic nerve by breathing through the left nostril can calm us down.
Specific practice: sit up, the spine is straight, the shoulders are slightly concave, and the left thumb and forefinger gently lock the left knee. Straighten the palm of your right hand, gently press the right nostril with your thumb, and put the other four fingers together. Close your eyes, watch your eyebrows slow down and take a long breath.
This breath seems to have no impression in my mind, but my body vaguely feels that it has been completed. My body will not forget. I add a left nostril breathing to myself every day to calm myself down.