The sphinx is another vagus nerve hack that can improve your cervical range of motion, thereby increasing blood flow to the brainstem and stimulating the vagus nerve. It relaxes the SCM and trapezius muscles, allowing for greater mobility.
polyvagal theory stephen porges
Not only can you consciously tap into the power of your vagus nerve; you should. Known as the “wandering nerve” in Latin, it begins in the brainstem and innervates the muscles of the throat, circulation, respiration, digestion and elimination tracks. It accounts for 80 percent of our parasympathetic, or “rest and digest,” nervous system. Healthy vagal activity is associated with better physical and mental well-being. Otherwise, it can cause issues such as inflammation, heart disease, and strokes.
