Drunkenness can be caused by non-disease factors, liver dysfunction, enzyme deficiency and so on. 1. Non-disease factors: Non-disease factors that cause drunkenness include age, drinking style and congenital factors. The metabolic rate of alcohol will gradually decrease with age, and its metabolizing ability in the body will also decrease, so it is easier for the elderly to get drunk than for the young. At the same time, if you drink on an empty stomach or drink too much alcohol at one time, it is possible to cause the body to ingest too much alcohol in a short period of time, leading to drunkenness. At the same time, part of the population is born with a lower degree of tolerance for alcohol than normal, so such a group of people are more prone to drunkenness. 2. Poor liver function: If you suffer from liver disease or liver function decline, the liver metabolism, decomposition of alcohol ability to reduce the accumulation of too much alcohol in the body after drinking alcohol easily drunk, it is recommended to minimize the number of times and the amount of alcohol consumption, and actively treat the primary disease. 3. Enzyme deficiency: congenital enzyme deficiency may also lead to drinking easily drunk, generally involved in alcohol metabolism of enzymes, including acetaldehyde dehydrogenase and ethanol dehydrogenase, etc., if the body lacks such enzymes, alcohol metabolism process will therefore be affected, thus causing drunkenness. There may be other reasons, such as poor mood, etc. It is recommended to stop drinking or limit the use of alcohol, and if drunkenness occurs, it is necessary to consult a doctor in a timely manner to exclude disease factors and treat the symptoms.