Ever wake up in the morning after doing some heavy drinking and wonder what you did the night before? Your memories were fuzzy, or you lost track of time altogether? If so, it’s likely you’ve experienced a blackout, and perhaps a doozy of a hangover.
While you may not think blacking out is a big deal, it actually is. Blacking out is a big indicator that your drinking may be out of control. And, blacking out could cause all sorts of problems in your life, such as driving under the influence, wandering in unsafe places, making poor decisions, and more.
Learning about blackouts can help you decrease your chances of ever having one, and can serve as a warning sign for when alcohol addiction is starting to take over your life. Let’s start by discussing the science behind blackouts, so you can get a better idea of what happens.
Key Points About Blackouts
- What are blackouts?
Blackouts are missing pieces of time in your memory due to intoxication. Unlike passing out, where you lose consciousness, during a blackout you are still active but unable to form new memories. - How are blackouts different from passing out?
When you pass out, you fall into a deep sleep-like state and stop moving. During a blackout, you remain active and continue to make decisions, but you won’t remember them later. - What causes blackouts?
Blackouts are typically caused by consuming large amounts of alcohol in a short period, leading to a spike in blood alcohol levels. Factors like your weight, gender, food intake, and type of alcohol consumed also play a role. - What is the difference between partial and complete blackouts?
Partial blackouts involve spotty memory loss where some memories may return later. Complete blackouts involve total memory loss for a period, with no possibility of recall because those memories were never formed. - How does a blackout affect the body?
Blackouts impair walking, speech, impulse control, and judgment. While a person might appear functional, they are actually operating without memory formation and may engage in risky behavior unknowingly. - Can blackouts damage the brain?
The blackout itself doesn’t cause damage, but chronic alcohol use can harm the brain’s frontal lobe, which is critical for cognition and behavior. - How can you prevent blackouts?
To prevent blackouts, avoid alcohol or drink in moderation. Eat beforehand, pace yourself, and drink water between alcoholic beverages. Avoid binge drinking. - Does blacking out mean you have a drinking problem?
Frequent blackouts may indicate a drinking problem. If you’re struggling to control your drinking or others are concerned, it may be time to seek help from addiction specialists or treatment centers.
What Are Blackouts?
The National Institute on Alcohol Abuse and Alcoholism says that blackouts are missing pieces of time in your memory due to intoxication. They’re not the same as passing out. When you pass out, you stop moving. You fall into a sleep-like state. However, when you blackout, you continue to move around and make choices. You just can’t remember them the next morning.
During a blackout, you may have difficulty walking, slur your speech, have a tough time seeing, and make poor choices. You’re conscious, but operating more from an unconscious state. Blackouts happen when there is excess alcohol in the body, stopping the hippocampus in the brain from creating new memories. It’s like hitting stop on the recording button halfway through a song but continuing to sing the song.
Experts say blackouts often occur at high BACs (commonly around 0.15%, though they can occur lower depending on speed of drinking and individual factors) Passing out means you lose consciousness and fall asleep, but very deep sleep. It can be super tough to wake up someone who has passed out.
Partial Or Complete Blackout
There are two types of blackout:
1. Partial
2. Complete
Partial, or fragmentary, tend to be the most common. This is when you blackout, wake the next morning having a partial or no memory of what happened the night before. However, as you wake and get your day started, you may start to remember certain things. Or, if someone starts telling you what occurred, it may jog your memory.
Complete blackouts are more serious. This is when you don’t remember a single thing that occurred after you blacked out. It’s like the memory deletes these memories forever because the reality is that your brain didn’t create the memories.
What Causes Blackouts?
Drinking a lot of alcohol can cause you to blackout, but there are various factors that come into play. Some experts state that blacking out is more likely to happen if you drink a lot of alcohol in a short period of time, such as binge drinking. This causes the blood alcohol level to spike quickly, and the overload could cause you to blackout.
With the higher amounts of alcohol in certain drinks and beer these days, if you don’t pay attention, you could find yourself highly intoxicated or blacking out.
Other factors involve your weight, gender, whether you have food in the stomach or not, the type of alcohol you’re drinking,
How A Blackout Affects Your Body
When someone blacks out, they lose some of their bodily functions. It impairs walking, talking, impulse control, and judgment. While a drinker may build a high tolerance for alcohol, it’s not so easy for the hippocampus to take on high amounts. It simply can’t create new memories when the BAC gets high.
When experiencing a blackout, it can be tough for others to know that the person is operating in such a state. They may carry on conversations, engage in risky behaviours sexually, use additional drugs, get into fights, drive, etc. without anyone knowing they’re in a blackout state.
Can Blackouts Negatively Affect The Brain?
It’s not so much the blackouts that negatively affect the brain. It’s chronic alcohol use that can cause harm to the brain’s frontal lobe. With the frontal lobe being an important part of cognition and behaviour, chronic or binge drinking can certainly cause damage.
Tips For Preventing Blackouts
The best way to avoid blackouts is to not drink alcohol at all. For those that choose to drink, be sure it’s in moderation in order to prevent blackouts. Be aware of how many drinks are recommended for your size and gender per hour. You’ll want to avoid binge drinking as well. Just one binge night can cause you to blackout.
Often, college students will engage in binge drinking and that can get them into all sorts of trouble, including blacking out. In addition, be sure you have food in your stomach before drinking and pace yourself. Be aware of how many drinks you have, perhaps drinking a glass of water in between.
Does Blacking Out Mean You Have A Drinking Problem?
Blacking out could mean you have a drinking problem, especially if it happens regularly. If this is happening to you, take some time to really think about your drinking habits. Are you overdoing it? Are others concerned about you? Have you tried to stop the behaviour but can’t?
Alcohol is addictive. The more you drink, the more likely you are to become dependent on it or addicted. If you think you have, know that you don’t have to stay addicted. There are addiction specialists and treatment centres that can help you stop drinking and get your life back on track. You simply have to reach out for help and do the recovery work.
Why Blackouts Happen: More Than Just Memory Loss
When you hear the word “blackout,” you might think of power outages that cut electrical power to a city. However, an alcohol-induced blackout is a different kind of system failure, one that happens inside the brain. It occurs when a person drinks large amounts of alcohol, particularly in a short period. This act of binge drinking causes the blood alcohol level to rise sharply.
When this happens, the alcohol interferes with key neurotransmitters in the brain, specifically in the hippocampus. The hippocampus plays a vital role in forming and storing memories. During a blackout, this function is temporarily blocked. Your brain can’t transfer short-term memories into long-term storage. The result is a “blank tape” or a gap in your memory. A person might experience a “fragmentary” blackout (spotty memory) or a “complete blackout” (no memory at all for a period of hours). It’s a dangerous sign that the amount of alcohol consumed has reached a toxic level for the brain.
Binge Drinking and Its Risks
Binge drinking is the primary driver of alcohol blackouts. For men, it is typically defined as consuming five or more alcoholic drinks in about two hours. This pattern of high-intensity drinking is unfortunately common, especially among college students, and carries significant health risks beyond just memory loss.
| Risk Factor | Description | Immediate Danger | Long-Term Consequence |
|---|---|---|---|
| Impaired Judgment | Alcohol lowers inhibitions and affects decision-making. | Engaging in risky behaviours (e.g., drunk driving). | Legal problems, damaged relationships. |
| Loss of Control | Binge drinking can lead to a complete loss of impulse control. | Accidents, falls, getting into fights. | Injury, trauma. |
| Alcohol Poisoning | A very high blood alcohol level can shut down critical life functions. | Person may lose consciousness, stop breathing. | Brain damage, death. |
| Injury | Coordination and reflexes are severely impaired. | Falls, burns, or other physical injuries. | Chronic pain, disability. |
The Dangers of Being “Awake” During a Complete Blackout
One of the most frightening aspects of a blackout is that a person can appear to be functioning. They can walk, talk, eat, and even have conversations. To an observer, they might just seem very intoxicated. However, their brain is not creating any new memories of these events. This puts the individual and others at extreme risk.
While in this state, a person’s judgment and impulse control are severely compromised. They are vulnerable to being taken advantage of and are more likely to engage in dangerous behaviours such as:
- Unprotected sex
- Driving a vehicle
- Getting into physical altercations
- Accidents, such as falls or burns from a gas stove or charcoal grills
Because they have no memory of the event, they cannot learn from the experience or even recall putting themselves in harm’s way. A complete blackout is a sign of a serious medical event, not a funny story for the next day.
How to Prevent Blackouts
The only certain way to prevent blackouts is to avoid excessive alcohol consumption. If you choose to drink, it’s critical to do so responsibly and be aware of the factors that can cause your blood alcohol level to spike. Creating a plan in advance is an effective strategy.
Here are practical steps to keep yourself safe:
- Drink Slowly: Pace yourself. Avoid taking multiple shots or chugging alcoholic drinks. Aim for no more than one standard drink per hour.
- Eat Food: Having food in your stomach before and while you drink slows the absorption of alcohol into your bloodstream.
- Stay Hydrated: Alternate alcoholic drinks with water. This helps you drink less alcohol overall and mitigates dehydration.
- Avoid Binge Drinking: Be conscious of how many drinks you are consuming in a short time. Set a limit for yourself before you start drinking and stick to it.
Understanding Your Body’s Limits
Individual responses to alcohol vary based on several factors. Recognizing your personal limits is essential for safety.
| Influencing Factor | How It Affects Blood Alcohol Level | Safety Tip | What to Avoid |
|---|---|---|---|
| Body Weight | Smaller individuals have less water to dilute alcohol. | Be mindful that your limit may be lower than others. | Trying to “keep up” with larger friends. |
| Sex | Women typically have less water and lower levels of an enzyme that breaks down alcohol. | Be aware that your BAC may rise faster than a man’s. | Drinking the same quantity as male friends. |
| Medication | Many medications can dangerously interact with alcohol. | Consult a doctor about your medical needs and prescriptions. | Drinking any alcohol while on interacting medication. |
| Fatigue | Being tired can lower your tolerance and impair judgment faster. | Prioritize rest; avoid drinking when exhausted. | Using alcohol as a “pick-me-up” when tired. |
Can you remember things after a blackout?
No, memories formed during a blackout cannot be recovered. When alcohol disrupts the hippocampus, the brain fails to encode new memories entirely; they simply don’t exist. This differs from ordinary forgetting, where memories fade over time. Once a blackout occurs, those moments are permanently lost, which is why blackouts are so dangerous and disorienting.
Don’t Wait for Another Blackout to Seek Treatment
Alcohol blackouts are far more than simple forgetfulness; they are a dangerous neurological response to binge drinking. They signal that the alcohol consumed has reached a level that is toxic to the brain, shutting down its ability to create new memories and putting you at serious risk.
The most effective way to prevent blackouts is to manage your drinking responsibly. If you regularly experience blackouts, it is a critical sign that you need to seek help. At Into Action Recovery, we provide a proven path for men ready to change everything and reclaim their lives from alcohol addiction. Contact us to get started on the path to change.
