The fastest way to feel better when you’re hungover is to rehydrate, eat something, and rest. There’s no instant cure, but the right combination of fluids, food, and sleep can shorten a hangover that might otherwise drag on for up to 24 hours or longer. Here’s what actually helps, what doesn’t, and why your body feels the way it does right now.
Why You Feel This Bad
When you drink, your liver converts alcohol into a toxic compound called acetaldehyde. At normal drinking speeds, your body breaks this down quickly. But after heavy drinking, acetaldehyde builds up faster than your liver can clear it. A study in Alcoholism: Clinical & Experimental Research linked elevated acetaldehyde levels directly to many classic hangover symptoms: headache, nausea, dry mouth, increased heart rate, and facial flushing.
On top of that, alcohol suppresses the hormone that tells your kidneys to hold onto water. That’s why you urinate so much while drinking and wake up dehydrated. Your liver also stops releasing stored glucose while it’s busy processing alcohol, which can leave your blood sugar low for up to 12 hours after your last drink. Low blood sugar adds fatigue, shakiness, and brain fog to an already miserable picture.
Hangover symptoms peak once your blood alcohol level drops back to zero, not while you’re still drunk. That’s why you can feel fine going to bed and terrible in the morning. According to the National Institute on Alcohol Abuse and Alcoholism, symptoms can persist for 24 hours or longer depending on how much you drank.
Rehydrate the Right Way
Water helps, but it’s not the most efficient option. Alcohol depletes sodium and potassium along with fluids, so plain water replaces volume without replacing what your cells actually need. Oral rehydration solutions like Pedialyte contain two to three times more electrolytes and about 25 to 50 percent less sugar than sports drinks. Their specific ratio of sugar and salt pulls fluid into your bloodstream faster than water alone.
If you don’t have Pedialyte on hand, a sports drink is still better than nothing. Coconut water is another reasonable option since it’s naturally high in potassium. Whatever you choose, sip steadily rather than chugging. Your stomach is already irritated, and flooding it with liquid can trigger more nausea. One important detail: don’t dilute oral rehydration solutions with other fluids, because that changes the sugar-to-electrolyte balance that makes them work.
Eat Even If You Don’t Want To
Your blood sugar is likely low, and eating is the most direct fix. The best hangover meals combine carbohydrates, protein, and some healthy fat. Carbs raise your blood sugar. Protein and fat slow digestion so that blood sugar stays stable instead of spiking and crashing again. Think eggs and toast with avocado, oatmeal with peanut butter, or a banana with yogurt.
Avoid greasy fast food if your stomach is sensitive. Despite its reputation as a hangover cure, a heavy, fried meal can make nausea worse. Bland, easy-to-digest foods are a safer bet if you’re feeling queasy. Crackers, bananas, and broth are all gentle starting points. Once your stomach settles, move to a more substantial meal.
Sleep It Off (For Real)
Alcohol wrecks your sleep quality even if you were unconscious for eight hours. It acts as a sedative during the first half of the night, suppressing the deep, restorative REM sleep your brain needs. Then during the second half, REM sleep rebounds erratically as your blood alcohol drops, which is why you often wake up at 4 a.m. feeling wired and awful. The result is that a full night of drunk sleep leaves you less rested than a shorter night of sober sleep.
Napping during the day lets your brain recover some of the restorative sleep it missed. Even 20 to 90 minutes can take the edge off fatigue and brain fog. If you can, keep the room dark and cool, and don’t set an alarm. Let your body take what it needs.
Choose the Right Pain Reliever
Reaching for painkillers is instinctive, but your choice matters. Acetaminophen (Tylenol) is the wrong pick. Your liver is already working overtime to process alcohol byproducts, and acetaminophen adds another burden to the same organ. Clinical studies show that taking acetaminophen shortly after alcohol clears your system increases the risk of liver damage, especially in people who drink regularly.
Ibuprofen (Advil, Motrin) or aspirin are generally safer choices for a hangover headache because they’re processed by the kidneys, not the liver. The tradeoff is that both can irritate your stomach lining, which alcohol has already inflamed. Take them with food and water, not on an empty stomach.
What Doesn’t Work
“Hair of the dog,” or drinking more alcohol to cure a hangover, is one of the most persistent myths. There’s a grain of biochemistry behind it: alcohol blocks the breakdown of methanol, a trace compound in many drinks that produces its own toxic byproducts. Drinking again temporarily pauses that process, which can make you feel better for an hour or two. But you’re just delaying the inevitable. Your body still has to clear all of those toxins eventually, and you’ll have added more on top.
Coffee is another go-to that’s more complicated than it seems. Caffeine can help with the headache and grogginess since it constricts blood vessels and increases alertness. But it’s also a mild diuretic, which can worsen dehydration if you’re not drinking water alongside it. One cup is fine. A pot is counterproductive.
IV drip bars and hangover supplement pills have become trendy, but there’s no strong clinical evidence that any commercially available hangover supplement significantly reduces symptoms beyond what basic hydration and rest achieve.
A Practical Recovery Timeline
If you woke up hungover this morning, here’s roughly what to expect. Symptoms are usually worst in the first few hours after you wake up, when your blood alcohol has just hit zero and acetaldehyde levels are still elevated. For a moderate hangover, most people start feeling noticeably better by early afternoon if they hydrate and eat. A severe hangover from a heavy night of drinking can take a full 24 hours to fully clear.
The most productive thing you can do in the first hour is drink an electrolyte solution and eat something small. Within two to three hours, try to nap. By the time you wake up, the worst should be behind you. Light movement like a short walk can also help by boosting circulation, though a hard workout will just dehydrate you further and make you feel worse.
If you’re vomiting repeatedly and can’t keep fluids down for several hours, or if you notice confusion, seizures, or very slow breathing, that’s beyond a normal hangover and could signal alcohol poisoning, which requires emergency medical attention.