There’s no instant cure for a hangover, but you can speed up recovery and ease the worst symptoms with a few targeted strategies. Most hangovers begin six to eight hours after your last drink, once your blood alcohol level drops significantly, and can last up to 24 hours. What you do during that window makes a real difference in how miserable those hours feel.
Why Hangovers Happen in the First Place
Alcohol triggers a cascade of problems in your body, not just one. Your liver breaks down ethanol into a toxic byproduct that causes oxidative stress. At the same time, alcohol suppresses a hormone that tells your kidneys to hold onto water, so you urinate far more than usual and lose fluids along with key minerals like magnesium, potassium, and zinc. Your immune system also kicks into an inflammatory response, similar to what happens when you’re fighting off an infection. That’s why a hangover can feel weirdly like the flu.
Interestingly, the speed at which your body processes alcohol matters. Slower metabolism means more alcohol reaches your brain over a longer period, which tends to produce worse hangovers. This is partly genetic, which explains why some people seem to handle the same amount of drinking better than others.
Your blood sugar also takes a hit. The liver prioritizes breaking down alcohol over its other jobs, including releasing stored glucose into your bloodstream. The result is a dip in blood sugar that contributes to the shakiness, fatigue, and brain fog you feel the next morning.
Rehydrate, but Smarter Than You Think
Drinking water helps, but plain water alone isn’t the full solution. Alcohol depletes electrolytes across the board, including sodium, potassium, magnesium, calcium, and phosphorus. Replacing fluid without replacing those minerals only gets you partway there. Sports drinks, coconut water, or oral rehydration solutions all work better than water alone because they contain the salts and sugars your body needs to actually absorb and retain the fluid.
Start hydrating as soon as you wake up and sip steadily rather than chugging large amounts at once, which can upset an already irritated stomach. Broth is another solid option: it’s warm, easy on the stomach, and naturally contains sodium and potassium.
What to Eat for Faster Recovery
Eating is one of the most effective things you can do for a hangover, even if your stomach is protesting. The goal is to raise your blood sugar back to normal and give your body the raw materials it needs to clear out alcohol’s toxic leftovers.
Eggs are one of the best hangover foods for a specific reason. They’re rich in cysteine, an amino acid your body uses to produce glutathione, a powerful antioxidant. Drinking alcohol drains your glutathione stores, and without enough of it, your body struggles to break down the toxic byproducts of alcohol metabolism. Eating eggs helps replenish that supply. Pair them with toast or another simple carbohydrate to bring your blood sugar up steadily.
Bananas are useful for replacing lost potassium. Oatmeal provides B vitamins and slow-release energy. If you can’t stomach solid food right away, even a piece of toast with honey or a smoothie with banana and yogurt will start the recovery process.
Why Coffee Might Make It Worse
Reaching for coffee feels instinctive when you’re exhausted and headachy, but it can backfire. Coffee is a diuretic, meaning it increases urine output, which works against the rehydration your body desperately needs. As Cleveland Clinic notes, drinking coffee could actually slow down your rehydration process.
Caffeine also narrows blood vessels and raises blood pressure, which can intensify the pounding headache that’s already making you miserable. If you’re a regular coffee drinker and skipping it entirely would give you a withdrawal headache on top of everything else, a small cup is reasonable. But it shouldn’t be your primary recovery strategy, and you should drink extra water alongside it.
Pain Relief: Choose Carefully
An anti-inflammatory pain reliever like ibuprofen can help with headache and body aches. Take it with food to protect your stomach lining, which alcohol has already irritated.
Avoid acetaminophen (the active ingredient in Tylenol) while your body is still processing alcohol. Your liver is already working overtime to metabolize what you drank, and acetaminophen adds to that burden. The FDA specifically warns people who consume three or more alcoholic drinks daily to talk to a doctor before using acetaminophen due to the risk of liver damage. Even for occasional heavy drinkers, it’s the wrong choice during active hangover recovery.
Skip the “Hair of the Dog”
Having another drink the morning after is one of the oldest hangover “remedies” and one of the least effective. There’s no scientific evidence that more alcohol cures a hangover. What it does is temporarily mask your symptoms by putting alcohol back into your system. The hangover isn’t gone. It’s just delayed, and it will return once that new drink wears off, often feeling worse for the extra time your liver spent processing additional alcohol instead of recovering.
This approach also carries a real risk of becoming a pattern. Regularly using alcohol to treat the effects of alcohol is one of the early behavioral signs of dependence.
Sleep and Time Are the Real Fix
Alcohol disrupts your sleep architecture even if you pass out quickly. You spend less time in the deep, restorative stages of sleep after drinking, which is why you wake up feeling wrecked even after eight hours in bed. If you can, go back to sleep or at least rest. Your body does most of its repair work during sleep, and giving it extra time accelerates the clearing of toxic metabolites.
The uncomfortable truth is that no supplement, food, or trick eliminates a hangover instantly. Most symptoms resolve within 24 hours on their own. But the combination of rehydration with electrolytes, food that supports your liver’s cleanup process, appropriate pain relief, and rest can compress that timeline and take the edge off the worst of it. The most effective hangover cure remains the boring one: drinking less, alternating alcoholic drinks with water, and eating before and during a night out.