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Alcohol-Related Brain Damage & Dementia


Alcohol is a highly abused substance that increases the risk of many health issues and diseases to individuals who misuse this substance.

Most individuals that suffer from alcohol use disorder have a deficiency in essential vitamins and nutrients the body requires to function properly.

This is what leads to health issues such as dementia and alcohol-related brain damage suffered by a majority of heavy drinkers.

This guide will discuss the symptoms of alcohol-related dementia, treatment, and other things that you should know about alcoholic dementia.

How alcohol affects the brain

After consuming a few drinks, your brain is immediately affected by the alcohol negatively. This results in a short-term reduction in the way your brain functions.

The short-term effects will affect your walking, vision, memory, and reflexes. Overtime continued excessive use of alcohol can cause permanent damage to the brain.

This is because the liver becomes overloaded due to heavy drinking and is unable to process the alcohol.

When this happens the alcohol will travel directly to other organs in the body including the central nervous system.

The extent that long-term heavy drinking has on your brain, depends on several factors.

This includes the following:

  • How much you drink
  • How often you drink
  • How long you have been drinking
  • Your sex, age, and genetics
  • Your overall health condition
  • Family history of alcoholism

These factors play a part in determining your risk for developing a debilitating condition such as alcohol-related brain damage.

Alcohol-related brain damage

After 10-20 years of heavy drinking, coupled with poor nutrition the result is a decline in brain function and health. This is referred to as alcohol-related brain damage.

Alcohol inhibits the absorption of vitamin B1 in the body which leads to a thiamine deficiency.

This deficiency is linked to alcohol-related brain damage or other conditions such as alcohol-related dementia, and Wernicke-Korsakoff Syndrome.

Studies show that approximately 80% of heavy drinkers that have this deficiency will develop this syndrome.

ARBD occurs when brain cells are damaged due to inadequate levels of thiamine in the body. This vitamin is needed to convert food into an energy supply for the brain.

Even when a person refrains from drinking, dementia is still evident because of the brain damage from the years of alcohol abuse.


Dementia is a symptom that results from a decline in brain function. This affects your ability to communicate, comprehend, and remember things. There are several types of dementia caused by different diseases and conditions, including alcohol-related dementia, Alzheimer’s, and vascular dementia.

If you have one of these diseases or conditions, the risk of you developing dementia will increase as you age. It is also possible to develop more than one type of dementia.

Symptoms of alcohol-related dementia

Several symptoms are generalised when a person has dementia and others are specific to the type or cause of dementia.

The following is a list of the general symptoms associated with dementia:

  • Memory loss
  • Confusion
  • Difficulty with clear and logical thinking
  • Difficulty with task planning and organising
  • Difficulty with common sense judgment and social skills
  • Agitation and/or restlessness
  • Paranoia/hallucinations
  • Personality changes
  • Depression and/or anxiety
  • Inappropriate behaviour

Alcohol-related dementia vs. other types of dementia

The two most common forms of dementia are Alzheimer’s disease and vascular dementia. There are similarities with alcoholic dementia and Alzheimer’s disease, however, alcohol-related dementia is not known to progress over time, and they are not caused by the same things.

Alzheimer’s disease’s main cause is ageing, while alcohol-related dementia is from alcohol killing your brain cells.

The early stages of alcohol-related dementia include symptoms such as confusion and the onset of short-term memory loss.

Alcohol-related dementia and Wernicke-Korsakoff Syndrome are often referred to as being the same thing.

However, Wernicke-Korsakoff syndrome is caused by a thiamine deficiency which tends to occur in individuals who suffer from alcohol use disorder. Alcohol-related dementia is a set of symptoms that emerge as a result of years of alcohol abuse.

Wernicke-Korsakoff Syndrome

Wernicke-Korsakoff Syndrome is two separate conditions yet they are related and oftentimes go hand in hand with one another. This disorder is a result of a deficiency in thiamine(vitamin B1) which occurs from alcohol misuse.

It is a brain disorder that begins with brain damage to the lower parts of the brain known as the thalamus and hypothalamus.

As symptoms of Wernicke syndrome fade, Korsakoff syndrome also known as Korsakoff psychosis develops, this is due to the memory part of the brain is permanently damaged.

Less than 5% of the population in the United States is affected by this disorder, with males being diagnosed more than females. Not everyone who has Wernicke syndrome will develop Korsakoff.

Approximately 80-90% develop Korsakoff syndrome which oftentimes appears as the symptoms from Wernicke syndrome fade.

Individuals with Wernicke-Korsakoff syndrome must seek treatment to slow the progression of this disorder. Failure to receive proper treatment for WKS can be life-threatening.

Once symptoms for Wernicke syndrome appear, you need to get treatment immediately. The symptoms will appear without warning, however, the progression can be slowed with treatment.

Once again if you fail to get treatment, Wernicke syndrome will transform into Korsakoff psychosis, which begins with short term memory loss.

If it reaches this more chronic and long-lasting stage, the chances for recovery dwindle. Approximately 50% of individuals that develop Korsakoff syndrome will fully recover.

The other half partially recovers, or they don’t recover at all and the disorder leads to death.

It is important to note that it is possible to develop Korsakoff syndrome without an episode of Wernicke syndrome and vice versa.

Symptoms of Wernicke-Korsakoff Syndrome

If a person develop alcohol-related dementia or Wernicke’s encephalopathy and it later progresses to Korsakoff’s psychosis, they may experience the additional following symptoms:

  • Sleep pattern changes
  • Issues with coordination of muscles or problems with balance
  • Paralysis of eye muscles, double vision drooping of the eyelid
  • Decreased attention span
  • Severe memory loss including lack of new memories being formed. Difficulty learning new things.
  • Possible leg tremors or shaking hands resulting from loss of muscle coordination
  • Severe confusion, lack of mental awareness, and activity that can lead to coma and/or death.
  • Confabulation also referred to as making up stories
  • Alcohol withdrawal.
  • No motivation or desire to do activities

How is Wernicke-Korsakoff Syndrome diagnosed?

Medical tests are performed to determine if an individual has alcohol-related dementia. An examination of the nervous and muscular system will reveal if an individual has damage to the nervous system resulting from alcohol-related dementia.

The tests used to diagnose alcohol-related dementia

The medical tests that are performed are looking for the following:

  • Fast heart rate
  • Low body temperature/ blood pressure
  • Difficulty with gait and coordination
  • Abnormal eye movement
  • Decreased and/or unusual reflexes
  • Muscle weakness and/or atrophy
  • Nutrition levels- specifically testing for the level of thiamine.

The types of test that are performed include:

  • Nervous/muscular system examination
  • Blood tests
  • Liver enzyme testing

Diagnosing Wernicke-Korsakoff Syndrome

The testing required to receive a clinical diagnosis of Wernicke-Korsakoff syndrome is more in-depth than diagnosing alcohol-related dementia. A thorough look at your medical history along with CT scans and MRIs are performed in addition to the lab tests, bloodwork, and liver function screening.

These tests are necessary to rule out any other illnesses or disorders that may resemble the symptom of WKS.

Who is at risk

Anyone who suffers from alcohol use disorder is at risk of developing alcohol-related dementia or Wernicke-Korsakoff Syndrome. This condition is not just a result of heavy drinking. Research studies have not been able to determine a safe amount to drink, however, your risk declines when you stop drinking or you drink in moderation.

The development of alcohol-related dementia and alcohol-related brain damage is not based on age, gender, height, or weight. Anyone can develop alcoholic dementia regardless of these factors.

If you begin to experience headaches, mood swings, anger episodes, consistent blackout episodes, or memory gaps that correlate with excessive alcohol consumption, then you should speak with your GP or primary physician to run tests to determine if it is alcohol-related dementia.

There are cases where individuals are born with alcohol-related brain damage due to the mother drinking while pregnant and exposing her fetus to alcohol.

This is referred to as Fetal Alcohol Syndrome. Alcohol enters the unborn baby’s body through the umbilical cord and unfortunately, the body of the unborn baby is unable to process the toxin because the body is not fully developed.

Fetal Alcohol Syndrome can lead to other issues, including stillborn, miscarriage, and developmental disorders. These developmental disorders include the following:

  • Impaired learning or low IQ
  • Short or small stature
  • Heart, kidney, bone disorders
  • Vision or hearing problems
  • Sleeping disorders

This is why it is stressed that pregnant women should refrain from consuming any amount of alcohol.

What type of drinker are you?

Occasional drinker- The occasional drinker can have memory inhibitions after a few drinks, consume large amounts of alcohol which result in a blackout, and not suffer long-term effects. However, over time these binges can build up and affect your brain cells.

Moderate drinker- The moderate drinker is one that drinks 1-2 drinks a day. Research studies have shown that drinking in moderation can still put you at risk for alcohol-related dementia and other health issues.

Heavy and chronic drinker- The heavy drinker label is assigned to a person that consumes 4-8 drinks daily over an extended time period. This results in long-term cognitive problems including alcohol-related brain damage long after a person becomes sober.

Treatment and prevention

While there are no cures for alcohol-related brain damage, alcohol-related dementia, or Wernicke-Korsakoff Syndrome, there are several forms of treatments available to help manage the symptoms. The purpose of treatment is to get your symptoms under control before it progresses.

The severity of the disorder or syndrome will determine the type of treatment or care that is needed. In some cases, the symptoms need to be monitored and special care needs to be provided in a hospital setting. This would include the following:

  • An individual is in a coma
  • A person is unconscious or lethargic
  • Vitamin B1 injections do not improve the symptoms of Korsakoff psychosis

In cases where there is a severe deficiency of thiamine such as Wernicke-Korsakoff Syndrome, thiamine is administered through an IV. During the early stages of alcohol-related dementia, individuals are advised to abstain from alcohol, eat healthy foods that are high in vitamin B1, and/or taking vitamin B1 supplements.

For the most part, the treatment of alcohol-related brain damage occurs in two phases. These two phases are referred to as stabilisation and rehabilitative care.  These concepts are discussed below:

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Where to get help

One of the biggest hurdles that individuals struggle to overcome is abstaining from alcohol use especially if they were a heavy drinker in the past. That’s why it is important to create a support network to help you through these tough times. Enlist a friend or family member to encourage and motivate you to abstain from alcohol.

You can also seek community support groups such as AA and Al-Anon. You can also seek various forms of therapy to address any mental or emotional disorders that you could be suffering from.

If you are seeking alternative treatment methods to manage your symptoms, there are government agencies that provide you with information for clinical trials or investigative therapies.

These agencies include:

  • Genetic and Rare Disease Information Center
  • National Institute of Health Clinical Center
  • National Dementia Hotline


After reading this guide you should be able to do the following:

  • Understand the different stages, conditions, and syndromes of alcohol-related brain damage.
  • Recognize the symptoms of ARBD and what steps to take to reduce the severity of the symptoms or reverse them
  • Know where to get help to manage your symptoms such as cravings
  • How to prevent your symptoms from getting worse
  • The differences between the different syndromes of alcohol-related brain damage and how each one is caused

Bottom line

Dealing with the consequences of a reckless lifestyle can be stressful. However, you need to remember that your choices are what put you in your current situation. Making changes in the early stages of your disease can help you reduce the symptoms or reverse some of the damage incurred from alcohol abuse. The most important thing is to remain free from the misuse of alcohol.