Automatic ring- close to colon and intestine ring, it is the border line between colon and intestine ring and inner organs ring. Normally Automatic Nerve Ring is a circle. Autonomic nerve contains 2 part, Sympathetic and parasympathetic. When the circle becomes abnormal, we need to take attention to Low blood pressure, physical pain, cervical discomfort, spontaneous hyperhidrosis, neurasthenia syndrome, migraine …