There’s no instant cure for a hangover, but you can significantly shorten how long you feel terrible. Most hangovers last about 18 hours from your last drink, peaking in severity around 14 hours after you started drinking. The strategies below target the specific biological processes making you miserable: dehydration, low blood sugar, inflammation, and the toxic byproducts your liver is still processing.
Why You Feel This Bad
When your liver breaks down alcohol, it first converts it into acetaldehyde, a toxic compound that causes rapid pulse, sweating, nausea, and skin flushing. A second enzyme then converts acetaldehyde into harmless acetate, but that process takes time. Until your liver catches up, acetaldehyde circulates through your body and drives many of the symptoms you’re experiencing.
Alcohol also triggers inflammation by raising levels of histamine, serotonin, and prostaglandins, which is why your head pounds. On top of that, drinking suppresses a hormone that helps your kidneys retain water, so you urinate far more than the volume of liquid you took in. The result is dehydration, electrolyte loss, and a drop in blood sugar that leaves you shaky, foggy, and exhausted.
Rehydrate With Electrolytes First
Water alone helps, but it doesn’t replace the sodium, potassium, and magnesium you lost overnight. Drink an electrolyte solution, coconut water, or even broth as soon as you wake up. Sports drinks work too, though they tend to be high in sugar. Aim to drink at least 16 to 24 ounces in your first hour of being awake, then keep sipping steadily. You’ll notice the headache and fatigue start to ease once your fluid balance improves.
Eat Carbs and Protein Early
Alcohol disrupts your body’s ability to maintain stable blood sugar, and combining alcohol with food that spikes glucose (like late-night pizza or sugary mixers) can actually make this worse. Research published in the Journal of Diabetes Investigation found that consuming alcohol and glucose together significantly increases the likelihood of reactive hypoglycemia, where blood sugar crashes below 54 mg/dL. That crash contributes to the shakiness, brain fog, and weakness you feel the morning after.
Eating a balanced meal helps stabilize things. Toast, oatmeal, rice, or bananas provide steady-release carbohydrates. Adding eggs or another protein source slows digestion further and gives your body amino acids it needs for recovery. If nausea makes a full meal impossible, start with plain crackers or a piece of fruit and work up from there.
Choose the Right Pain Reliever
Ibuprofen or aspirin can help with the headache and body aches. Both reduce the inflammatory compounds (prostaglandins) that alcohol ramps up, so they target the actual mechanism behind hangover headaches.
Avoid acetaminophen (Tylenol). Your liver is already working overtime to clear alcohol and its byproducts, and acetaminophen is processed through the same organ. Research in the World Journal of Gastroenterology found that even standard doses of acetaminophen carry increased liver injury risk when combined with recent alcohol use. Ibuprofen is processed mainly by the kidneys, making it a safer choice the morning after drinking. Take it with food to avoid stomach irritation.
Sleep More If You Can
Alcohol fragments your sleep architecture, reducing the deep and REM sleep stages your body needs to recover. Even if you slept for eight hours, the quality was poor. If your schedule allows it, going back to sleep for a few more hours is one of the most effective things you can do. Your liver clears acetaldehyde at a fixed rate regardless of what you eat or drink, and sleeping simply lets that process run while you skip the worst of the symptoms. Hangover severity scores in research studies declined rapidly starting around 16 hours after drinking, so every extra hour of sleep you get brings you closer to that turning point.
What Actually Speeds Up Recovery
Beyond the basics above, a few other interventions have real physiological logic behind them:
- Ginger or ginger tea targets nausea directly. It’s one of the most effective natural anti-nausea options and is easy on an irritated stomach.
- Light movement like a short walk can improve circulation and help your body process metabolites faster. Skip intense exercise, which will dehydrate you further.
- Coffee in small amounts can help with the grogginess and headache if you’re a regular caffeine drinker, since part of your headache may be caffeine withdrawal. But coffee is a mild diuretic, so pair it with extra water.
- B vitamins and zinc are depleted by alcohol metabolism. A basic multivitamin or B-complex supplement won’t cure anything instantly, but it supports the enzymatic processes your liver relies on to clear toxins.
What Doesn’t Work
“Hair of the dog,” or drinking more alcohol the next morning, delays the hangover rather than curing it. It works temporarily because ethanol competes with methanol (a more toxic congener) for the same liver enzymes. So your body stops producing the toxic byproducts of methanol breakdown for a while, and you feel briefly better. But once that new alcohol is metabolized, everything comes back, often worse.
Activated charcoal, IV vitamin drips, and most “hangover cure” supplements have little to no clinical evidence behind them. Dihydromyricetin (DHM), a compound found in some hangover supplements, is typically dosed at 300 to 1,000 mg, but the evidence for its effectiveness in humans remains limited.
Prevention Makes the Biggest Difference
If you’re reading this before your next night out rather than during the aftermath, you have more options. Clear liquors like vodka, gin, and white rum contain far fewer congeners, the toxic fermentation byproducts that worsen hangovers. Dark spirits like bourbon, brandy, cognac, and dark whiskey are loaded with congeners, as is tequila. Red wine falls on the higher end too. Switching to clear drinks won’t prevent a hangover entirely, but it measurably reduces severity.
Eating a substantial meal before drinking slows alcohol absorption. Alternating every alcoholic drink with a glass of water reduces total intake and keeps dehydration in check. And pacing yourself to roughly one drink per hour gives your liver time to keep up, preventing the acetaldehyde buildup that drives the worst symptoms the next day.