It is uncertain when the body will return to normal after quitting smoking and drinking, and it needs to be analyzed according to the time of patients' exposure to alcohol and tobacco and the current health status. If you smoke and drink alcohol for a long time, there have been some obvious manifestations of physical damage, such as abnormal liver function, some persistent sleep problems in the brain or impaired memory and thinking ability, and some patients may find it difficult to fully return to normal levels. If some mild patients don't smoke or drink for a long time, their basic vital organs have no obvious damage, and they can return to the same age level within a few months to a year. The human body is a process of constant development and change. Even if there is no problem of smoking and drinking, the function of the body will decline after a few years. Therefore, the normal standard should be based on the age at that time, and the health condition at that time was to return to normal. For patients who quit smoking and drinking, we should pay attention to developing good living habits and keeping the oral cavity clean and hygienic. In addition, try not to participate in unnecessary wine fairs, and the diet is mainly light and digestible food.