There will be certain changes in the body after giving up alcohol: first, changes in the digestive system, because prolonged alcohol abuse and drinking will cause certain stimulation to the liver and the mucous membrane of the gastrointestinal tract, causing digestion and malabsorption. Therefore, the functions of digestion and absorption will be restored accordingly after giving up alcohol, and there will be no more clinical symptoms such as acid reflux, heartburn, gastrointestinal nausea, vomiting, and spitting acidic water. There will be no more acid reflux, heartburn, gastrointestinal nausea, vomiting, and acid reflux. There will also be a strengthening of the digestive and absorptive functions and a transient increase in body weight after giving up alcohol. Second, the circulatory system will change after quitting alcohol, long-term alcoholism will cause certain adverse effects on the cardiovascular system, resulting in the heart due to coronary artery ischemia and spasm caused by chest tightness, shortness of breath, palpitations and other symptoms. Therefore, after quitting alcohol, the circulatory system will show that the heart rate becomes normal, or the human body does not have obvious clinical changes of chest tightness and shortness of breath after exercise load. Thirdly, the nervous system will appear to be more stable after quitting alcohol, hand tremor tends to disappear, and sleep will return to normal.