Decreased alcohol consumption may be caused by decreased secretion of active enzymes in the liver, abnormal liver function, age factor and other reasons. 1. Decreased secretion of active enzymes in the liver: After alcohol enters the human body, it will be metabolized by the liver, which will secrete an enzyme that metabolizes alcohol to promote the metabolism of alcohol. If the decrease in the secretion of active enzymes in the liver can not metabolize the alcohol in the liver in a timely manner, it may also lead to the phenomenon of decreased alcohol intake. 2. Abnormal liver function: After alcohol enters the human body, it needs to be metabolized by the liver, and after abnormal liver function, there is no way to metabolize alcohol quickly after it enters the human body, so it is easy to have a drop in the amount of alcohol, drunkenness and other situations. 3. Age factor: with the gradual increase of age, the body metabolism enzyme will also appear dynamic changes, resulting in a decline in alcohol consumption. Drinking is harmful to health, and the recommended intake of alcohol is 0. After a sudden decline in alcohol consumption, it is recommended that you go to the hospital in time to determine whether there is an organic pathology, and target treatment.