Alcohol withdrawal is a set of physical and psychological symptoms that occur when a person who drinks heavily or regularly suddenly reduces or stops alcohol use.(Source) Over time, the brain and body adapt to the presence of alcohol. When alcohol is removed, the central nervous system becomes overactive, leading to withdrawal symptoms that can range from mild discomfort to life‑threatening emergencies.(Source)

Alcohol use disorder (AUD) is a chronic medical condition characterized by impaired control over drinking, continued use despite harm, and physical dependence.(Source) Not everyone who drinks heavily will develop AUD, but people with AUD are at high risk for withdrawal if they stop drinking abruptly.

Attempting to detox from alcohol at home without medical supervision can be extremely dangerous, especially for people who have been drinking heavily for a long time, have a history of withdrawal symptoms, or have other medical conditions.(Source)