Hangover Symptoms, Causes, and Remedies: What You Need to Know

   Jul. 18, 2025
   6 minute read
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“Too much of anything is bad, but too much good whiskey is barely enough.” – Mark Twain

If you’ve ever woken up with a pounding headache, dry mouth, and regret in your stomach, you’ve had a hangover. While they might seem like a normal part of drinking, hangovers are actually your body’s way of saying something’s wrong.

And here’s the shocking truth: frequent hangovers can signal alcohol withdrawal, early-stage alcoholic liver disease, or even a developing addiction.

In the U.S., nearly 1 in 4 adults report binge drinking at least once in the past month, according to the CDC. Many of them assume the headache and nausea the next morning are harmless. But hangovers aren’t just unpleasant—they can be dangerous.

This post will break down the symptoms of a hangover, why they happen, what they mean, and how to find real recovery and hope—especially if you’re stuck in a cycle of overdrinking.

What Is a Hangover, Really?

A hangover is a group of symptoms that happen after drinking too much alcohol. It usually shows up the morning after, once your blood alcohol level starts to fall.

But it’s not just about drinking a lot. People who binge drink, even once or twice a week, are at much higher risk of developing long-term problems, including alcoholic liver disease and addiction.

Common Hangover Symptoms

Hangovers can feel different for everyone, but most people experience a mix of:

  • Headache
  • Nausea or vomiting
  • Fatigue
  • Dizziness
  • Shakiness
  • Increased heart rate
  • Anxiety or sadness
  • Difficulty focusing
  • Sensitivity to light and sound
  • Dehydration and dry mouth

These symptoms usually last anywhere from a few hours to a full day.

⚠️ If you ever experience seizures, confusion, chest pain, or vomiting blood after drinking, it could be alcohol poisoning, not just a hangover. Seek medical attention immediately.

Causes of a Hangover

So, what actually causes a hangover? It’s not just the alcohol itself—it’s how alcohol affects your body:

  1. Dehydration: Alcohol is a diuretic. It makes you pee more, which leads to dehydration (hello, pounding headache).
  2. Stomach irritation: Alcohol increases stomach acid and delays digestion, leading to nausea and sometimes vomiting.
  3. Low blood sugar: Drinking drops your blood sugar, which causes fatigue and mood swings.
  4. Toxin buildup: Your liver breaks down alcohol into chemicals like acetaldehyde, which is toxic and contributes to that sick feeling.
  5. Poor sleep: Alcohol may make you sleepy, but it messes with REM sleep, so you wake up feeling drained.
  6. Mini alcohol withdrawal: For heavy drinkers, hangovers can be a sign of mild alcohol withdrawal, especially if symptoms like shakiness or anxiety appear.

Is It Just a Hangover—Or Something More?

This is where things get serious.

If you’re having hangovers frequently, or if the symptoms feel extreme, it could mean your body is starting to depend on alcohol. That’s a red flag for alcohol use disorder and a warning sign that you may need help.

Signs that your hangovers could be a bigger problem include:

  • Needing a drink to “feel normal” the next day
  • Experiencing withdrawal symptoms like shaking or sweating
  • Drinking even when it causes problems
  • Blacking out or losing chunks of time
  • Trouble stopping even if you want to

These are signs that professional support may be needed—like detox or inpatient rehab.

Hangover vs. Alcohol Withdrawal: Know the Difference

Both hangovers and alcohol withdrawal cause similar symptoms. But withdrawal happens after your body has developed a dependence on alcohol.

Here’s how to tell the difference:

HangoverAlcohol Withdrawal
Happens after one night of drinkingHappens after stopping heavy drinking over time
Usually lasts less than 24 hoursCan last days or even weeks
Symptoms include headache, nausea, fatigueSymptoms may include tremors, anxiety, seizures
Goes away on its ownMay require medical detox

Can a Hangover Cause Liver Damage?

Not directly. But repeated hangovers from heavy drinking can be a sign that your liver is under stress. Over time, this can lead to alcoholic liver disease—a serious condition that can result in cirrhosis or liver failure.

If you’re waking up sick after drinking more than once or twice a month, it’s worth checking in with a doctor or addiction professional.

Frequent hangovers may seem harmless, but over time, they can signal serious alcohol-related damage—like the onset of wet brain, a life-threatening condition caused by chronic alcohol misuse and thiamine deficiency.

Quick Hangover Remedies (That Actually Help)

If you’re dealing with a standard hangover—not withdrawal or poisoning—there are a few safe remedies that can help:

  • Hydrate with water, sports drinks, or electrolyte solutions
  • Eat bland foods like toast, crackers, or bananas
  • Take pain relief like ibuprofen (avoid acetaminophen—it stresses the liver)
  • Rest and sleep as much as possible
  • Avoid more alcohol (“hair of the dog” just delays symptoms and can lead to dependence)

☀️ Best remedy of all? Prevent it. Cut back or quit drinking to avoid future hangovers and long-term damage.

When to Seek Professional Help

If hangovers have become a regular part of your life, or if you’re showing signs of dependence, it’s time to consider detox and treatment.

Why Detox Matters

A supervised detox program helps you safely get alcohol out of your system. It reduces the risk of seizures, alcohol poisoning, and severe withdrawal symptoms.

What Happens in Inpatient Rehab?

Inpatient rehab provides 24/7 medical care, therapy, and support. You’ll learn healthier coping strategies and start building a better, alcohol-free life.

You’re not weak if you need help. You’re smart for reaching out before things get worse.

There’s Hope After Hangovers

No one likes to feel sick, scared, or out of control after a night of drinking. But you don’t have to stay stuck in that cycle.

Recovery is real. With support and treatment, you can:

  • Wake up feeling clear-headed
  • Enjoy time with friends and family without drinking
  • Improve your mental and physical health
  • Take back control of your life

Every day, thousands of people choose recovery. And you can too.

Listen to What Your Hangover Is Telling You

A hangover isn’t just your body punishing you—it’s your body protecting you. It’s saying: “Something’s not right. Please take care of me.”

If your hangovers are getting worse, more frequent, or harder to shake, don’t ignore the signs. Reach out for help. Talk to your doctor. Call a helpline.

Because feeling better isn’t just about curing a hangover. It’s about healing your whole life.

Looking for treatment, but don’t know where to start?
Take the first step and contact our treatment helpline today.
(866) 578-7471
Frequently Asked Questions
What causes a hangover and how long does it last?
A hangover is caused by drinking too much alcohol, which leads to dehydration, low blood sugar, inflammation, and toxin buildup in the body. Hangover symptoms like headache, nausea, and fatigue usually appear several hours after drinking and can last up to 24 hours, depending on how much was consumed and individual tolerance.
Is a hangover a sign of alcohol withdrawal?
Mild hangover symptoms can mimic early signs of alcohol withdrawal, especially in people who drink heavily or frequently. If symptoms like shakiness, anxiety, or sweating happen regularly after drinking, it may indicate a deeper issue and the need for medical detox or treatment.
Can hangovers cause long-term damage to your liver or brain?
While an occasional hangover won’t directly cause liver damage, repeated binge drinking and frequent hangovers are linked to a higher risk of alcoholic liver disease and brain-related conditions like wet brain (Wernicke-Korsakoff syndrome). These are serious health risks that develop over time with continued alcohol abuse.
What’s the best way to cure a hangover fast?
There’s no true “cure” for a hangover, but you can ease symptoms by drinking plenty of water, eating bland foods, taking non-acetaminophen pain relievers, and getting rest. Avoid drinking more alcohol ("hair of the dog")—it can worsen your condition and increase the risk of dependence.
When should I seek help for frequent hangovers or alcohol use?
If you're experiencing hangovers multiple times a week, or feeling unwell without alcohol, it may be time to seek help. Frequent hangovers can be a warning sign of alcohol use disorder. Treatment options like medical detox, inpatient rehab, and therapy can help you safely recover and regain control.
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