Traditional Chinese medicine believes that the internal organs of the human body correspond to the meridians. The immune system in traditional Chinese medicine is the "positive energy" of the human body. The Yellow Emperor's Classic of Internal Medicine states: "When positive energy exists within, evil cannot enter." Once the positive energy is sufficient, external evil energy will not easily invade and interfere with the human body. The internal organs will be able to have normal physiological activities and have the ability to resist external evil and promote self-repair.
Traditional Chinese medicine believes that if the body's meridians are unobstructed, Qi and blood are in harmony, and internal organs are coordinated, the limbs will be strong. If the meridians are blocked, Qi stagnates and blood stagnates, the Ying is weak and the Wei is weak, and the internal organs are out of balance, the body may experience discomfort or even become ill. Therefore, when a part of the human body is dysfunctional, you can use DIY health care methods such as scraping, cupping, moxibustion, health-preserving qigong, acupoint massage and other techniques to allow "force" and "qi" to penetrate into the body along the meridians at the acupoints, thereby restoring physiological balance and coordination.