Good back. Back massage can stimulate and regulate the main meridians and acupoints of the body, especially the spine and bladder meridian, which is very important for health. Therefore, back massage can promote the blood circulation of the body, relieve the pain of muscles and joints, and improve the quality of sleep. Frontal massage involves many important organs and tissues, such as heart, lungs and stomach. Without sufficient skills, these organs and tissues will be damaged, which will have adverse effects.