Alcohol dependence is a mental and physical dependence on alcohol resulting from long-term alcohol consumption. Generally speaking, the life expectancy of a person suffering from alcohol dependence is reduced by 5-10 years compared to a normal person, with individual variations. Patients suffering from alcohol dependence syndrome, due to the severe poisoning of the central nervous system caused by long-term alcohol consumption, will often feel fidgety and panicky after stopping drinking; they will also have physical reactions such as tremors, nausea, vomiting and sweating. Alcohol dependence syndrome patients’ deaths are mostly caused by problems with liver function, such as alcoholic liver, fatty liver, cirrhosis and even liver cancer and its complications. Secondly, long-term alcohol consumption can lead to gastrointestinal pathologies, such as bleeding, perforation and even cancer of the gastroduodenum. Finally, it can also lead to craniocerebral trauma, stroke or seizures and other diseases. Therefore, it is recommended that patients seek professional medical help and actively treat alcohol dependence by gradually reducing the amount of alcohol consumed on a regular basis, so as not to lead to diseases and affect life expectancy.