Alcohol withdrawal affects everyone in a slightly different manner. As such, the length of withdrawal is dependent on several factors. The first and most obvious is the amount of alcohol consumed, followed by how long the person has been drinking and whether they drink on a regular basis. Other factors include nutritional specifics, weight, age, and whether or not the alcohol was ingested along with other substances. Another important factor to consider is whether the person experiencing withdrawal symptoms has any other mental health issues (ie, depression, anxiety, etc).