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When you drink alcohol, it affects various systems throughout your body. As a result, you may develop a hangover the following day after drinking heavily. In short, a hangover is the body’s reaction to alcohol.
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Hangovers cause a variety of different physical and emotional symptoms. Their severity often correlates with the amount of alcohol consumed the night before. In many cases, the side effects of a hangover are more of an inconvenience. Although, the effects of hangovers can be serious and cause serious impairment.
Long after alcohol leaves your system, your body continues to suffer and recover from an alcohol hangover.
What Causes Hangovers?
The short answer is alcohol consumption. However, it isn’t as simple as that. Alcohol affects everyone differently. One person may experience a hangover after a single drink. Others, on the other hand, can drink in excess and wake up the next morning without a hangover.
There are many factors that make a person more susceptible to hangovers, including:
- Drinking on an empty stomach – When your stomach is empty, it releases alcohol into the bloodstream at a faster rate. This increases the debilitating effects on the body and increases your risk of a hangover.
- Smoking cigarettes – Smoking cigarettes while drinking alcohol increases your risk of a hangover and can intensify symptoms. Studies show that cigarette smoke contains the chemical acetaldehyde. This is the same chemical your liver releases as it processes alcohol and is linked to hangover symptoms.
- Not enough sleep – Poor sleep habits before drinking, or the poor quality of sleep that occurs after drinking, can contribute to increased hangover symptoms.
- A family history of alcoholism – Research shows that alcoholism has some genetic components. Gene variants can also affect how your body metabolizes alcohol and increases your risk of hangovers.
- Choosing to drink darker alcoholic beverages – Dark alcoholic beverages contain higher concentrations of congeners. While congeners contribute to the dark color, taste, and odor of these beverages, they also interfere with cell function and contribute more to your hangover risk.
Side Effects & Symptoms of a Hangover
Hangovers are the result of the body’s attempt to recover from alcohol intoxication. Heavy drinking leads to frequent urination (diuresis), which commonly results in thirstiness, dizziness, dry mouth, and an electrolyte imbalance. After you drink heavily, you may also develop stomach pain, a sore throat, or a combination of other hangover symptoms:
Alcohol suppresses the release of vasopressin. This hormone helps regulate your kidneys and the release of urine. When you drink alcohol, your kidneys release more urine than normal. This contributes to dehydration and hangover symptoms such as increased thirst, dry mouth, fatigue, and headaches.
Alcohol increases the level of inflammation throughout your body. This inflammation can affect organs in the body, such as the liver and brain. Regular excessive alcohol use and the resulting inflammation can cause damage to these organs. In terms of hangovers, inflammation throughout the body often contributes to the pain and general malaise you experience.
Alcohol is caustic and irritates the lining of the stomach and increases the release of acid. This contributes to the upset stomach, nausea, and vomiting associated with hangovers.
Blood Sugar Regulation
Consuming alcohol affects the body’s ability to regulate blood sugar, causing levels to fall to dangerously low levels. This can cause “the shakes,” fatigue, weakness, and, in extreme cases, seizures.
After a night of drinking, you may feel ready to jump into bed and will likely fall asleep quickly. Unfortunately, that doesn’t mean you will get the rest you need. Alcohol leads to disrupted and fragmented sleep, leaving you feeling unrested and fatigued. This can also contribute to memory loss, confusion, and trouble thinking.
Exposure to Acetaldehyde
When your liver processes alcohol, it releases the chemical acetaldehyde. This toxic by-product of alcohol contributes to increased inflammation in the brain, gastrointestinal tract, liver, pancreas, and other areas of the body.
When you consume alcoholic drinks, the chemical production in your brain changes. While alcohol makes you feel more relaxed, your brain produces more stimulating compounds to create a balance. When you stop drinking, those stimulating compounds take over while your body works to balance with calming compounds.
Until that happens, you may experience restlessness and anxiety. While this is a common symptom that occurs when alcoholics go through withdrawals, similar mini-withdrawal symptoms can occur with a hangover.
The lack of energy, poor memory, lack of coordination, and inability to concentrate after a night of drinking occurs because alcohol causes damage to the brain.
How Do Hangovers Negatively Impact Your Brain?
When you go out drinking, you know that alcohol is going to affect your brain, how you think, and your reaction times. This is the reason why drinking and driving is illegal. However, alcohol continues to affect your brain and your cognitive abilities are still lacking even after your alcohol levels drop. In addition, the effects of alcohol on the brain can linger well after it leaves the bloodstream.
Is it Just a Hangover or is it Alcohol Poisoning?
Alcohol abuse and heavy drinking can take a toll on the body. Hangover side effects can be debilitating. Although, if they continue to worsen or become severe, a simple hangover may not be your problem. Alcohol poisoning occurs when you ingest too much alcohol. While initial symptoms can be similar to those of a hangover, new symptoms will develop. Symptoms can include:
- Intense vomiting
- Slow or irregular breathing
- Pale or blue-toned skin
- A drop in body temperature
- Loss of consciousness
- Difficulty remaining conscious
If you experience any of these symptoms, seek immediate medical help as this can be a life-threatening emergency. A person who is unconscious or can’t be awakened is at risk of death.
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