In the study of meridians in traditional Chinese medicine, the longest meridian of human body, Foot Taiyang Bladder Meridian, extends from the forehead to the top of the head, to the nape (front strong, then nape), to the lumbosacral part, to the rear edge of lower limbs, and to the instep. The acupoints of the bladder meridian on the back and waist involve the main organs of the human body, such as Shu Fei, Xinshu, Geba, Ganshu, Danshu, Pishu and Shu Wei. Therefore, some similar stimulation methods, such as stepping on the back, can achieve the purpose of balancing the yin and yang of viscera and regulating the qi and blood of meridians (which can prevent diseases and strengthen the body). Through professional massage, acupuncture and other stimulation, you can also treat many diseases.