Lena Savoie
Hangovers are a common phenomenon, with a 1990 study showing that 25% of students had experienced a hangover in the previous week. A hangover is a set of unpleasant physiological and psychological effects that usually occur after drinking too much alcohol. While the causes of hangovers are not fully understood, several factors are believed to contribute to the symptoms, including dehydration, inflammation, hormonal alterations, and changes in glucose metabolism. Hangover symptoms typically include fatigue, headache, nausea, and anxiety, among others, and can last for up to 24 hours or more. While there is no cure for a hangover, certain remedies can help alleviate the symptoms, such as drinking fluids, getting sleep, and taking anti-inflammatory medications. The best way to avoid a hangover is to abstain from alcohol or drink in moderation.
| Characteristics | Values |
|---|---|
| Definition | A hangover is a set of unpleasant physiological and psychological effects that occur after drinking too much alcohol. |
| Symptoms | Headache, drowsiness, weakness, concentration problems, dry mouth, dizziness, fatigue, muscle ache, gastrointestinal distress (e.g., nausea, vomiting, diarrhea), absence of hunger, light sensitivity, depression, sweating, hyper-excitability, high blood pressure, irritability, and anxiety. |
| Causes | Acetaldehyde accumulation, changes in the immune system, decreased blood glucose concentration, dehydration, metabolic acidosis, disturbed prostaglandin synthesis, increased cardiac output, vasodilation, sleep deprivation, malnutrition, hormonal alterations, and genetic factors. |
| Risk Factors | Amount of alcohol consumed, gender, body weight, type of alcohol, rate of consumption, dilution of beverage, food consumption, personality, health status, age, associated activities (e.g., smoking), and use of other drugs. |
| Treatment | Drinking fluids, sleep, antacids, anti-inflammatory drugs (e.g., aspirin, ibuprofen), and time. There is no quick cure or way to speed recovery. |
| Prevention | Avoiding alcohol or drinking in moderation, following recommended drinking guidelines, not drinking on an empty stomach, and avoiding rapid consumption. |
| Duration | Typically lasts for several hours to 24 hours or more. |
| Impact | Hangovers can affect personal relationships, work performance, and quality of life. They can also be dangerous for individuals with certain health conditions, such as heart disease. |
| Alcohol in System | Hangover symptoms typically appear when blood alcohol content is near zero, but there may still be alcohol in the system. Impaired concentration and high blood alcohol levels can affect driving and work abilities. |
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What You'll Learn
Hangover symptoms
A hangover refers to a set of unpleasant symptoms that occur as a consequence of drinking too much alcohol. Hangover symptoms vary from person to person and can affect an individual physically and mentally. The severity of a hangover is dependent on many factors, including the amount of alcohol consumed, genetics, health status, age, sex, associated activities during drinking, sleep quality and duration, and the use of other substances.
Typical hangover symptoms include fatigue, weakness, thirst, headache, muscle aches, nausea, stomach pain, gastrointestinal distress (e.g. vomiting, diarrhoea), dizziness, drowsiness, concentration problems, dry mouth, absence of hunger, light sensitivity, sweating, irritability, anxiety, and increased blood pressure. Some people may also experience mood disturbances, such as depression or anger, and increased excitability. Hangovers can last for several hours or more than 24 hours, with symptoms usually easing up over eight to 24 hours.
The cause of hangovers is not fully understood, but several factors are believed to be involved. One factor is the accumulation of acetaldehyde, a toxic substance formed during the breakdown of alcohol, which can lead to inflammation in various organs, including the brain, liver, pancreas, and gastrointestinal tract. Another factor is dehydration, as alcohol affects the hormones that regulate fluids in the body, leading to mild dehydration and electrolyte imbalances. Alcohol can also irritate the stomach and increase acid production, causing gastrointestinal distress.
In addition to these physical symptoms, hangovers can also have psychological effects. The mini-withdrawal theory suggests that drinking alcohol makes individuals feel calmer, more relaxed, and even euphoric, but as the nervous system adjusts to these effects, individuals may experience restlessness, anxiety, and irritability when the buzz wears off. Changes in the immune system, glucose metabolism, metabolic acidosis, disturbed prostaglandin synthesis, increased cardiac output, vasodilation, sleep deprivation, and malnutrition have also been implicated in the pathophysiology of hangovers.
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Alcohol withdrawal
A hangover is a milder form of alcohol withdrawal. It is the experience of various unpleasant physiological and psychological effects that usually follow the consumption of alcohol. Typical symptoms of a hangover include headache, drowsiness, weakness, concentration problems, dry mouth, dizziness, fatigue, muscle ache, gastrointestinal distress (e.g. nausea, vomiting, diarrhoea), absence of hunger, light sensitivity, depression, sweating, hyper-excitability, high blood pressure, irritability, and anxiety.
- From six to twelve hours after your last drink containing alcohol: Mild symptoms appear, such as a headache, mild anxiety, and insomnia.
- Within 24 hours of your last drink: You may experience hallucinations, depending on the severity of the withdrawal.
- Between 24 to 72 hours after your last drink: For most people with mild to moderate withdrawal, the symptoms typically peak and begin to resolve in this timeframe. If you have severe or complicated withdrawal, your seizure risk is highest 24 to 48 hours after your last drink.
- Anxiety, nervousness, or irritability
- Excessive sweating
- An upset stomach
- Heart palpitations
- Increased blood pressure
- Increased heart rate
- Hyperthermia (high body temperature)
- Tremors (shakiness) of hands or other body parts
- Hallucinations
People with moderate-to-severe alcohol withdrawal symptoms may need to be treated at a hospital or other facility that treats alcohol withdrawal. If you have mild-to-moderate alcohol withdrawal symptoms, you can often be treated in an outpatient setting. However, it is important to have someone stay with you and keep an eye on you. Total and lifelong avoidance of alcohol (abstinence) is the best treatment for those who have gone through alcohol withdrawal.
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Factors influencing hangover severity
While the causes of a hangover are not fully understood, several factors are known to influence its severity. These factors include the amount of alcohol consumed, personality, genetics, health status, age, sex, associated activities during drinking, physical activity, sleep quality and duration, and the use of other drugs.
Personality traits such as neuroticism, anger, defensiveness, or guilt over drinking can increase the risk of a hangover. Additionally, genetics play a significant role, with certain alleles influencing alcohol tolerance and the development of hangover effects. For example, the alcohol flush reaction, more common in Asians, is associated with increased susceptibility to hangovers and reduced risk of alcoholism.
Health status, age, and sex also impact hangover severity. Individuals with alcohol intolerance may have a genetic inability to process acetaldehyde, a byproduct of alcohol metabolism, leading to hangover symptoms even after small amounts of alcohol. Age and sex influence alcohol metabolism rates, with older individuals and women experiencing slower metabolism and potentially more severe hangovers.
Associated activities during drinking, such as smoking or using other drugs, can worsen hangovers. Physical activity, such as dancing, may also impact hangover severity. Sleep quality and duration are crucial, with sleep deprivation contributing to the unpleasant symptoms of a hangover.
The type of alcohol consumed also matters. Beverages with higher congeners, compounds that contribute to taste, smell, and intoxicating effects, tend to cause more severe hangovers. Darker drinks like bourbon, scotch, tequila, brandy, dark beers, and red wine lead to worse hangovers than lighter-colored drinks like vodka, gin, light beer, and white wine.
Finally, the best way to prevent a hangover is to drink in moderation or avoid alcohol altogether. While there is no quick cure for a hangover, staying hydrated, getting adequate sleep, and taking antacids or anti-inflammatory medications can help alleviate the symptoms.
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Remedies and prevention
While there is no quick cure for a hangover, there are some remedies that can help alleviate the symptoms. Here are some tips for remedies and prevention:
Remedies
- Drink plenty of water to combat dehydration, a common side effect of alcohol consumption. It is recommended to drink water before going to sleep and throughout the next day.
- Consume carbohydrates to increase your blood sugar levels, which may have dropped due to drinking. Toast and crackers are good options.
- Take a pain reliever such as aspirin, ibuprofen, or paracetamol to help with headaches and overall achiness. Avoid Tylenol, as it may have toxic effects on the liver when mixed with alcohol.
- Get adequate sleep. Alcohol can disrupt sleep patterns, so aim for restful sleep to aid your body's recovery.
Prevention
- The only guaranteed way to prevent a hangover is to abstain from drinking alcohol or to keep alcohol intake to a minimum.
- If you choose to drink, follow low-risk drinking guidelines. For example, the UK Chief Medical Officers' guidelines recommend no more than 14 units of alcohol per week, spread over several days, with some drink-free days, and no binge drinking.
- Drink slowly and in moderation. It is recommended to have no more than one drink per hour, as that is the approximate time it takes for the body to process one drink.
- Drink water in between alcoholic beverages to stay hydrated and slow down your alcohol consumption.
- Avoid darker-colored alcoholic beverages, as they tend to have higher levels of congeners, which can worsen hangover symptoms.
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Alcohol intolerance
A hangover is a milder form of alcohol withdrawal. When the nervous system adjusts to the effects of alcohol, it can lead to feelings of restlessness, anxiety, and irritability when the alcohol wears off. Hangover symptoms include a fast pulse, sweating, nausea, dehydration, metabolic acidosis, disturbed prostaglandin synthesis, increased cardiac output, vasodilation, sleep deprivation, malnutrition, headache, drowsiness, weakness, concentration problems, dry mouth, dizziness, fatigue, muscle ache, gastrointestinal distress, absence of hunger, light sensitivity, depression, hyper-excitability, high blood pressure, and irritability. While there is no quick cure for a hangover, drinking lots of fluids, getting enough sleep, and taking antacids or NSAIDs like aspirin or ibuprofen can help alleviate the symptoms.
The symptoms of alcohol intolerance typically appear shortly after alcohol consumption and can vary in severity. While there is no cure or medication for alcohol intolerance, some lifestyle changes can help manage the symptoms. These include limiting or avoiding alcohol consumption, choosing drinks low in sulfites and other preservatives, staying hydrated, and eating before consuming alcohol to slow its absorption.
It is important to distinguish between alcohol intolerance and alcohol allergy, which is an immune system response to specific ingredients or components in alcoholic beverages. Allergic reactions to alcohol can cause symptoms such as difficulty breathing, coughing, runny nose, or stomach upset, which may be triggered by even a small amount of alcohol. If individuals are experiencing symptoms of alcohol intolerance or allergy, it is recommended to consult a healthcare professional for proper diagnosis and guidance.
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Frequently asked questions
Yes, hangover symptoms tend to peak when the blood alcohol concentration in the body returns to about zero. Hangovers can last for several hours or more than 24 hours.
Typical symptoms of a hangover include headache, drowsiness, weakness, concentration problems, dry mouth, dizziness, fatigue, muscle ache, nausea, vomiting, diarrhoea, stomach pain, light sensitivity, sweating, anxiety, irritability, and increased blood pressure.
There is no quick cure for a hangover. Doctors recommend drinking lots of fluids, getting enough sleep, and taking antacids or NSAIDs like aspirin or ibuprofen to settle your stomach and ease aches and pains.
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