Massaging the area behind the mastoid process, near the base of the skull, stimulates the vagus nerve, which plays a key role in the parasympathetic nervous system. This activation promotes relaxation, reduces stress, and lowers heart rate, helping the body shift into a restful state. Additionally, this area contains tension-prone muscles like the sternocleidomastoid, and releasing tightness there can improve blood flow and reduce headaches or neck strain, further enhancing sleep quality. FOLLOW