The most effective hangover remedies are the simplest ones: water, food, electrolytes, rest, and time. There’s no instant cure, but several strategies can meaningfully reduce how terrible you feel while your body processes the aftereffects of alcohol.
A hangover is your body dealing with multiple problems at once: dehydration, inflammation, irritated stomach lining, disrupted sleep, and the toxic byproducts of alcohol metabolism. Different remedies target different parts of that picture, which is why a combination approach works better than any single fix.
Why Hangovers Happen
When you drink alcohol, your liver breaks it down in two stages. First it converts alcohol into a compound called acetaldehyde, which is significantly more toxic than alcohol itself. Then it converts acetaldehyde into harmless acetate. The problem is that first step happens faster than the second, so acetaldehyde builds up in your system and triggers nausea, headaches, and that general feeling of being poisoned.
Alcohol also suppresses a hormone that tells your kidneys to hold onto water. Without that signal, your kidneys flush fluid rapidly, which is why you urinate so frequently while drinking. By morning, you can be substantially dehydrated, which drives headaches, fatigue, and dizziness. On top of that, alcohol triggers an inflammatory response throughout your body and irritates your stomach lining directly, producing the nausea and stomach pain that make mornings miserable.
Rehydration and Electrolytes
Drinking water is the single most helpful thing you can do, both during a night of drinking and the morning after. Alcohol pulls water and electrolytes out of your body, and replacing them addresses the headache, dry mouth, lightheadedness, and fatigue that come with dehydration. Plain water works, but adding electrolytes speeds up absorption and replaces the sodium, potassium, and magnesium you’ve lost.
Sports drinks, coconut water, or oral rehydration solutions all serve this purpose. Pedialyte has become a popular hangover choice because it contains a higher concentration of electrolytes than most sports drinks with less sugar. Broth or soup also delivers fluid plus sodium in an easy-to-stomach form. Aim to drink water steadily throughout the morning rather than forcing down a huge amount at once, which can make nausea worse.
Food That Actually Helps
Eating before and during drinking slows alcohol absorption considerably, which reduces the severity of a hangover the next day. But if you’re already in the thick of it, eating the right foods still helps. Your blood sugar drops after heavy drinking because your liver is too busy processing alcohol to release stored glucose normally. Low blood sugar contributes to shakiness, weakness, fatigue, and irritability.
Bland, carbohydrate-rich foods like toast, crackers, rice, or bananas are gentle on an irritated stomach and help restore blood sugar. Eggs are a particularly good choice because they contain an amino acid called cysteine, which helps your body break down acetaldehyde. Bananas are high in potassium, one of the key electrolytes depleted by alcohol. Greasy food is a popular hangover tradition, but it’s more effective as prevention (eaten before drinking to slow absorption) than as a cure. A heavy, greasy meal on an already upset stomach can make nausea worse.
Over-the-Counter Pain Relief
A headache is usually the most disruptive hangover symptom, and a pain reliever can help. Ibuprofen or aspirin will reduce the headache and some of the inflammatory response driving your symptoms. However, both can irritate your stomach lining further, so take them with food and water rather than on an empty stomach.
Avoid acetaminophen (Tylenol) when you’re hungover. Your liver is already working hard to clear alcohol and its byproducts. Acetaminophen is also processed by the liver, and combining the two increases the risk of liver damage. This applies especially if you still have alcohol in your system.
Sleep and Rest
Alcohol disrupts sleep architecture even when it helps you fall asleep faster. It reduces the amount of deep, restorative sleep you get and causes more frequent waking in the second half of the night. Much of the brain fog, irritability, and exhaustion of a hangover comes from poor sleep quality rather than alcohol’s direct effects. If your schedule allows it, going back to sleep is one of the most productive things you can do. Your body clears acetaldehyde and rebalances its chemistry faster when you’re resting.
Coffee and Caffeine
Coffee can help with the grogginess and headache, particularly if you’re a regular caffeine drinker who would get a withdrawal headache on top of the hangover. Caffeine constricts blood vessels, which can ease a pounding headache, and the alertness boost is real. But coffee is a mild diuretic, so it can worsen dehydration if you’re not drinking water alongside it. It can also increase stomach acid and make nausea worse. A small cup with food and water is a reasonable approach. A large black coffee on an empty stomach is not.
What Doesn’t Work
“Hair of the dog,” or drinking more alcohol the next morning, delays your hangover rather than preventing it. It works temporarily because it raises your blood alcohol level again, which masks symptoms. But you’re adding more toxic load for your liver to process, and the hangover catches up with you later, often worse. Regularly using this strategy is also a warning sign for alcohol dependence.
Most commercial hangover supplements and pills have limited evidence behind them. Products containing B vitamins, milk thistle, or various herbal extracts are widely marketed, but clinical trials have not consistently shown meaningful benefits for any of them. Some ingredients like prickly pear extract and red ginseng have shown modest effects in small studies, reducing nausea or inflammation slightly, but nothing dramatic enough to call a cure.
IV hydration clinics have become trendy in some cities, offering saline drips with added vitamins. These do rehydrate you quickly, but there’s no evidence they work better than simply drinking fluids and electrolytes by mouth. They’re expensive and carry the small but real risks of any IV procedure.
Prevention Makes the Biggest Difference
The severity of a hangover correlates most strongly with how much you drink, how fast you drink it, and whether you had food in your stomach. Pacing yourself, alternating alcoholic drinks with water, and eating a substantial meal before drinking are consistently more effective than any morning-after remedy.
Darker liquors like bourbon, red wine, and brandy contain higher levels of congeners, which are byproducts of fermentation that worsen hangovers. Clear spirits like vodka and gin have fewer congeners and tend to produce milder hangovers at the same alcohol dose. Carbonated mixers can speed alcohol absorption, so cocktails with flat mixers may be slightly gentler on your system.
Drinking a large glass of water before bed, along with a snack, addresses dehydration and blood sugar while your body is still processing alcohol overnight. It won’t prevent a hangover entirely after heavy drinking, but it consistently reduces the severity of symptoms the next morning. Keeping water by your bed so you can drink when you wake during the night helps too.
How Long a Hangover Lasts
Most hangovers peak within several hours of waking and resolve within 24 hours. The timeline depends on how much you drank, your body size, your liver’s processing speed (which varies genetically), and how well you slept and hydrated. Hangovers tend to get worse with age because your body becomes less efficient at clearing acetaldehyde and recovers from inflammation more slowly. If hangover symptoms last beyond 24 hours or include fever, repeated vomiting, or confusion, those may indicate alcohol poisoning or another medical issue rather than a standard hangover.