Most experts agree that alcohol consumption is safe in moderation. However, drinking large quantities of alcohol and drinking to the point of intoxication, especially if done repeatedly, can be dangerous.
Eventually, repeated heavy drinking can lead to a clinical condition called an alcohol use disorder, the medical term for alcoholism or an alcohol addiction. One of the signs of an alcohol addiction is withdrawal.
Alcohol withdrawal occurs because over time, the body can become dependent upon alcohol, meaning that it does not function properly without it. When a person who is dependent upon alcohol stops drinking or reduces the amount of alcohol that he or she consumes, it can result in uncomfortable withdrawal symptoms. Tremors are one such symptom.