4 Surprising Side Effects You May Experience When You Quit Alcohol

Fewer hangovers, clearer skin and better sleep are all the benefits one would expect when quitting alcohol. However, depending on how deep down the bottle you went, quitting alcohol after prolonged heavy drinking may lead to withdrawal symptoms. This happens because alcohol is a central nervous system depressant. Your nervous system adapts by working harder to keep your body functioning. 

When you suddenly stop drinking, your nervous system becomes overstimulated. This overactivity causes the physical and mental symptoms of alcohol withdrawal syndrome. The effects of quitting alcohol begins to affect your mood, relationships and affect sleep. This typically affects individuals with alcohol use disorder (AUD). Approximately 50% of all people with alcohol use disorder experience withdrawal when they stop or reduce drinking.

The Brain’s Response to Quitting Alcohol

In individuals with AUD, the brain and central nervous system become physically dependent on alcohol due to long-term abuse. To counteract alcohol’s constant sedative effect, your brain increases its own stimulating chemical signals. This creates a new, altered state of balance. When you quit alcohol, the sedative effect is no longer there, but the brain’s overactivity still remains. This imbalance and overstimulation is what triggers withdrawal symptoms.

The result is an overactive nervous system that can lead to tremors, anxiety, insomnia, and nausea. In severe cases, this overactivity can progress to life-threatening complications like seizures and delirium tremens. Untreated or poorly managed withdrawal can be fatal. For this reason, seeking professional help when you decide to quit alcohol is important.