Alcohol can be safe in moderation, but too much alcohol can be harmful. When people abuse alcohol over the long-term, they may develop an alcohol addiction.
One of the symptoms of an alcohol use disorder, or addiction to alcohol, is withdrawal. This occurs when the body becomes dependent upon alcohol and cannot function properly without it. When a person develops and alcohol dependence, he or she will experience uncomfortable withdrawal symptoms when alcohol use is stopped or significantly reduced.
According to a report in the Industrial Psychology Journal, mild alcohol withdrawal begins about six hours after a person stops using alcohol and involves symptoms such as tremors, sweating, fast heart rate, upset stomach, headache, and anxiety. Some people may also experience hallucinations when they withdraw from alcohol. In some cases, withdrawal may progress to more severe symptoms, such as withdrawal seizures or a serious condition called delirium tremens, which causes severe confusion and may be fatal.