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What Does Alcohol Blackout Mean? (2024 Best Edition)

What Does Alcohol Blackout Mean

Last Updated on March 23, 2024 by Lydia Martin

Have you ever experienced having an evening out with friends and had no idea how you got back home?

Blackouts are risky and can lead to different health problems, so being aware of the signs of an alcohol blackout can help you avoid getting sick.

However, blackouts are not widely understood by most drinkers. So, what does alcohol blackout mean? Read on to find out.

What’s An Alcohol Blackout?

Man Drinking Alcohol, What Does Alcohol Blackout Mean?

An alcohol blackout is a partial memory loss caused by a sudden increase in blood alcohol concentration (BAC). Another term for it is alcohol-induced amnesia.

Although not all drinkers react the same way to alcohol, a person’s BAC should be at least 0.14 percent before they can start a blackout. 

A black-out drunk person may appear to be still conversing yet unaware of their actions, and they can make decisions unconsciously. 

What Happens to Your Body During an Alcohol Blackout? 

What happens to your body during an alcohol blackout depends on the level of intoxication and how long you’ve been drinking. 

“During a blackout, an individual is capable of participating in salient, emotionally-charged events but will have no recollection of what has occurred.”

— Dr. Aaron White, Ph.D., Assistant Research Professor of Psychiatry at Duke University

Short- and long-term effects can lead to different risky behaviors of the body [1]. 

Short terms effects may include: 

  • Slurred speech and delayed reactions
  • Difficulty walking
  • Increased impulsiveness and poor decision-making
  • Headaches and nausea 
  • Dry mouth
  • Diarrhea

Long-term effects may include: 

  • Liver disease
  • Memory loss (temporary, but may lead to serious condition)
  • Gag or choke (in sleep)
  • Accident prone
  • Frontal lobe damage 

Who Are Most Commonly at Risk of Having It? 

Woman Drinking Wine

Blackouts are most common among people in middle age and suffering from the risk of alcohol. 

On the other hand, young adults at an early age are more susceptible to experiencing such episodes due to social pressure or certain situations.

Women are reported to have more experience in blackouts than men due to how their bodies process alcohol. 

Those who use drugs such as Xanax or OxyContin, which have sedative properties, are also more prone to experiencing blackouts.   

How Long Does an Alcohol Blackout Last? 

Alcohol blackouts may last for hours. But the body automatically ends the blackouts once it burns the alcohol in your bloodstream.

When this happens, the brain can begin again to generate memories. 

The time varies, depending on how your body process alcohol. It can take an hour or more. 

On the other hand, some drinkers believe sleeping can help prevent blackouts, which allows the body to recover from the effects of alcohol. 

Its Possible Causes

Women Drinking Beer

Blackouts are often caused by different factors. Some of these include: 

  • The weather conditions
  • The others behavior
  • The amount of alcohol consumed
  • Consuming alcohol with an empty stomach

Blackouts can be caused by various factors, such as exposure to toxins, alcohol, or drugs.

There are two types of blackouts: a partial blackout and a complete blackout. 

A partial blackout can allow people to recall certain events with visual or verbal cues, while a complete blackout can lead to memory loss.

How Do You Prevent Alcohol Blackouts When Drinking?

You can prevent alcohol blackouts in different ways. It can be as simple as: 

  • Drink slowly and in moderation
  • Limit the intake of alcohol in your body    
  • Abstain from drinking completely    
  • Food and water can also help avoid possible blackouts

How To Recover From Alcohol Blackouts 

guy sitting on a couch

To recover from an alcohol blackout, here are a few things you need to take notes of: 

  • After a heavy drinking session, get plenty of water and a nutritious breakfast
  • You can also try to piece together what happened exactly
  • It would be helpful to talk to someone about getting help 

The Difference Between Blacking Out & Passing Out

Blacking out is a type of memory loss caused by intoxication [2]. It can’t be recalled because the brain can’t produce new memories due to the intoxication.

On the other hand, passing out is when one loses consciousness and may not be awakened for some time.  

Frequently Asked Questions (FAQs)

What does blacking out feel like?

Experiencing a blackout due to alcohol consumption can vary from person to person, but generally, it involves a complete or partial loss of memory for events that occurred during a drinking episode.

During a blackout, individuals may appear functional and engage in activities, but the memory formation process is impaired, resulting in an inability to recall these events afterward.

It’s often described as a gap in memory where one moment you might be fully conscious, and the next, there’s a complete or partial blackout.

Some people may feel disoriented or confused when they realize they can’t recall what happened during the blackout period.

Why do you pass out when drunk?

Passing out while drunk, also known as alcohol-induced unconsciousness or alcohol-induced coma, occurs when alcohol suppresses the central nervous system (CNS) to a point where it affects the brain’s ability to regulate consciousness and basic bodily functions.

Also is a depressant that slows down the activity of nerve cells in the brain, leading to impaired cognitive function, coordination, and eventually, loss of consciousness.

Factors such as the amount of alcohol consumed, individual tolerance levels, hydration status, and overall health can influence how quickly someone passes out when intoxicated.

How can I prevent memory loss when drinking?

Preventing memory loss while drinking involves several strategies:

Drink in Moderation: Limit your alcohol intake to reduce the risk of memory impairment. Pace yourself and alternate alcoholic drinks with water or non-alcoholic beverages to stay hydrated and minimize the effects of alcohol on memory.

Know Your Limits: Understand your tolerance level for alcohol and avoid exceeding it. Pay attention to how different types and amounts of alcohol affect you personally.

Avoid Binge Drinking: Consuming large quantities of alcohol in a short period significantly increases the likelihood of blackouts and memory loss. Stick to moderate drinking habits and avoid binge drinking episodes.

Eat Before Drinking: Consuming food before drinking can slow down the absorption of alcohol into the bloodstream, reducing its impact on cognitive function and memory.

Stay Hydrated: Drink plenty of water before, during, and after drinking alcohol to stay hydrated. Dehydration can exacerbate the effects of alcohol on memory and cognitive function.

Get Sufficient Sleep: Adequate sleep is crucial for memory consolidation. Avoid excessive alcohol consumption, especially before bedtime, as it can disrupt normal sleep patterns and impair memory formation.

Seek Help if Needed: If you find it challenging to control your alcohol consumption or experience frequent memory blackouts when drinking, consider seeking support from a healthcare professional or a support group specializing in alcohol-related issues.

By implementing these strategies and practicing responsible drinking habits, you can reduce the risk of experiencing memory loss associated with alcohol consumption. Remember to prioritize your health and well-being when consuming alcoholic beverages.

Is blacking out good or bad?

Blacking out due to alcohol consumption is generally considered bad for several reasons. While some may perceive it as a sign of having a good time or reaching a desired level of intoxication, it poses serious risks to one’s health and safety.

Blackouts indicate a significant impairment of cognitive function and memory formation, leading to gaps in memory for events that occurred during the blackout period.

This loss of memory can result in potentially dangerous situations, including engaging in risky behaviors, experiencing injuries, or being unable to recall important details such as conversations or agreements.

Why is blacking out bad for you?

Blacking out from alcohol consumption is detrimental to both short-term and long-term health. In the short term, it increases the risk of accidents, injuries, and dangerous behaviors due to impaired judgment and coordination.

Additionally, individuals who experience blackouts may be vulnerable to exploitation or harm, as they may not remember interactions or events that occurred during the blackout period.

In the long term, frequent blackouts can indicate excessive alcohol consumption, which is associated with a range of health problems, including liver disease, cardiovascular issues, neurological damage, and addiction.

Blacking out regularly can also lead to psychological distress and negatively impact relationships, work, and overall quality of life.

Is it bad to go to sleep drunk?

Going to sleep while intoxicated can have negative consequences for several reasons. Firstly, alcohol disrupts normal sleep patterns, leading to poorer sleep quality and decreased restorative sleep.

While alcohol may initially induce drowsiness and help individuals fall asleep faster, it interferes with the deeper stages of sleep, resulting in fragmented and less restful sleep overall. This can leave individuals feeling groggy, fatigued, and irritable upon waking.

Additionally, sleeping while drunk increases the risk of accidents, such as falls or choking on vomit, especially if individuals are in a position where they cannot protect themselves, such as when sleeping on their back. It’s important to prioritize safety and avoid going to sleep in a heavily intoxicated state.

If alcohol consumption has occurred, it’s advisable to wait until the effects have worn off before attempting to sleep to minimize risks to health and safety.

Is it OK to let a drunk person sleep?

It is generally considered safe to let a drunk person sleep, especially if they are in a comfortable and supervised environment. Sleeping can help the body metabolize alcohol and allow the individual to recover from the effects of intoxication.

However, it’s essential to ensure that the drunk person is in a position where they can sleep safely, such as on their side to prevent choking in case of vomiting. Additionally, it’s crucial to monitor their breathing and responsiveness periodically to ensure their safety.

If there are concerns about their health or if they are unresponsive, it’s important to seek medical assistance immediately.

What’s the difference between fainting and blackout?

Fainting and blacking out are both conditions that involve a loss of consciousness, but they have different causes and characteristics. Fainting, also known as syncope, occurs when there is a temporary decrease in blood flow to the brain, leading to a brief loss of consciousness.

It can be caused by various factors, including low blood pressure, dehydration, sudden emotional stress, or standing up too quickly. Fainting is often preceded by symptoms such as dizziness, lightheadedness, or nausea.

On the other hand, blacking out, particularly in the context of alcohol consumption, refers to a loss of memory for events that occurred during a period of intoxication. It is caused by the effects of alcohol on the brain’s ability to form and retain memories.

During a blackout, individuals may remain conscious and engaged in activities, but their brain is unable to encode the memories of these events properly. As a result, they cannot recall what happened during the blackout period once they sober up.

Why does blacking out happen?

Blacking out, or experiencing alcohol-induced memory loss, occurs due to the disruptive effects of alcohol on the brain’s ability to form and retain memories. Alcohol affects the neurotransmitters in the brain, particularly gamma-aminobutyric acid (GABA) and glutamate, which are involved in memory formation and cognitive function.

Alcohol impairs the functioning of these neurotransmitters, leading to a temporary suppression of certain brain regions responsible for memory encoding and consolidation.

Additionally, alcohol can interfere with the hippocampus, a brain region crucial for the formation of new memories. High levels of alcohol in the bloodstream disrupt the communication between neurons in the hippocampus, preventing the brain from creating lasting memories of events that occur during intoxication.

Factors such as the amount of alcohol consumed, the rate of consumption, individual tolerance levels, and genetic predispositions can influence the likelihood of experiencing a blackout. People who consume large quantities of alcohol rapidly, such as during binge drinking episodes, are at a higher risk of blacking out.

Additionally, individuals with a history of blackouts or those with underlying neurological conditions may be more susceptible to experiencing alcohol-induced memory loss.

What is too much alcohol?

The amount of alcohol considered “too much” varies depending on factors such as age, weight, sex, tolerance, and overall health. Generally, moderate alcohol consumption is defined as up to one drink per day for women and up to two drinks per day for men, according to dietary guidelines in some countries.

Exceeding these limits regularly can lead to health problems and increase the risk of alcohol-related issues such as liver disease, cardiovascular problems, addiction, and accidents.

Binge drinking, which involves consuming a large amount of alcohol in a short period, is also considered harmful and is associated with immediate risks such as alcohol poisoning, injuries, and impaired judgment.

What is Hangxiety?

Hangxiety is a colloquial term used to describe feelings of anxiety, guilt, or regret that occur during a hangover, particularly when reflecting on actions or events that took place while intoxicated.

Hangxiety is often accompanied by physical symptoms such as headache, nausea, fatigue, and dehydration, which can exacerbate feelings of unease or distress.

It is thought to result from the combined effects of alcohol withdrawal, dehydration, disrupted sleep, and changes in neurotransmitter levels that occur during a hangover.

Individuals experiencing hangxiety may feel overwhelmed by negative thoughts or emotions, leading to increased anxiety or low mood during the hangover period.

How do you know if you’re blackout?

Knowing if you’re experiencing a blackout can be challenging because, by definition, it involves a loss of memory for events that occurred during a period of intoxication. However, some signs and indicators can suggest that you may be blackout drunk:

Memory Gaps: If you find significant gaps in your memory for events that occurred during a drinking episode, such as being unable to recall conversations, activities, or places you visited, it may indicate a blackout.

Disorientation: Feeling confused, disoriented, or unsure of where you are or how you got there can be a sign of being blackout drunk.
Incoherence: If your speech becomes slurred, disjointed, or difficult to understand, it could indicate a high level of intoxication and potential blackout.

Loss of Control: Engaging in behaviors that are out of character or risky, such as aggressive behavior, reckless driving, or unsafe sexual activity, can suggest that you may be experiencing a blackout.

Physical Symptoms: Experiencing symptoms such as nausea, vomiting, loss of coordination, or passing out can be associated with blackout drinking.

If you suspect that you or someone else may be blackout drunk, it’s important to prioritize safety and seek assistance if necessary. Avoid further alcohol consumption, ensure that the person is in a safe environment, and monitor their well-being closely. Seeking medical help may be necessary if there are concerns about alcohol poisoning, injury, or other health issues.

Is blacking out an excuse?

Blacking out, or experiencing alcohol-induced memory loss, is not an excuse for any actions or behaviors that occurred during the blackout period.

While blackouts can impair memory formation and lead to gaps in recollection, individuals are still responsible for their actions and their consequences, whether they remember them or not.

Engaging in risky or harmful behaviors while intoxicated can have serious repercussions, and it’s essential to take accountability for one’s actions regardless of the presence of a blackout.

So, What Does Alcohol Blackout Mean?

There’s nothing wrong with drinking alcohol as long as your body can handle the effects afterward.

Too much consumption can lead to detrimental effects on your health, which can be life-threatening. So know your limitations and drink moderately.

These two are simple keys to avoiding blackouts and passing out. 


  1. Understanding Why Blackouts Happen
  2. Interrupted Memories: Alcohol-Induced Blackouts
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