A hangover runs on its own clock, but you can ease the worst of it and speed your recovery with a few targeted strategies. Your body typically clears alcohol at a rate of about 20 mg/dL per hour, which means a night of heavy drinking can take well into the next afternoon to fully process. There’s no instant cure, but understanding what’s actually happening inside your body helps you pick the interventions that work and skip the ones that don’t.
What’s Actually Causing Your Symptoms
A hangover isn’t just dehydration, though that’s part of it. Your liver converts alcohol into a toxic compound called acetaldehyde before breaking it down further into harmless acetic acid (essentially vinegar). When you drink faster than your liver can keep up, acetaldehyde builds up and damages cells, contributing to nausea, headache, and that overall feeling of being poisoned.
Alcohol is also a diuretic. It tells your kidneys to release more urine than usual, flushing out fluids and electrolytes like sodium and potassium. That fluid loss is what drives the fatigue, dizziness, and throbbing headache many people feel the morning after.
There’s a neurological layer too. While you’re drinking, alcohol suppresses your brain’s excitatory signaling and boosts calming activity. Once the alcohol wears off, the balance swings hard in the opposite direction: excitatory signaling spikes while calming activity drops. This rebound is why you feel jittery, anxious, and sensitive to light and sound the next day. It also explains why your sleep felt shallow even if you were out for eight hours.
Finally, your liver prioritizes breaking down alcohol over maintaining blood sugar. When it’s busy detoxifying, it stops releasing stored glucose into your bloodstream. The result is a dip in blood sugar that causes shakiness, weakness, irritability, and brain fog, especially if you drank without eating.
Rehydrate With Electrolytes, Not Just Water
Drinking water helps, but it only replaces lost fluid. It doesn’t restore the sodium and potassium your kidneys flushed out overnight. An oral rehydration solution like Pedialyte, or even a basic sports drink, does both at once. If you don’t have either on hand, water with a pinch of salt and a splash of juice is a reasonable substitute.
Start sipping as soon as you wake up. Don’t try to chug a liter at once, especially if you’re nauseated. Small, steady amounts absorb better and are less likely to come back up. Avoid coffee until you’ve had at least a glass or two of something hydrating. Caffeine is another diuretic, and while it can relieve a headache temporarily, it can deepen dehydration if you’re already running a deficit.
Eat Something, Even If You Don’t Want To
Your blood sugar is likely low, and eating is the most direct fix. Bland, carbohydrate-rich foods like toast, crackers, bananas, or oatmeal are easy on a fragile stomach and raise blood sugar steadily. Bananas are especially useful because they’re high in potassium, one of the electrolytes you’ve lost.
Eggs are another solid option. They contain an amino acid that helps your body process acetaldehyde more efficiently. A simple breakfast of eggs and toast covers multiple recovery needs at once: blood sugar, electrolytes, and liver support. If solid food feels impossible, broth or soup delivers salt, fluid, and a small amount of energy in a form most people can tolerate.
Choose the Right Pain Reliever
Ibuprofen or naproxen (Advil, Aleve) can help with headache and body aches, but they carry a caveat: both can irritate the stomach lining and stress the liver, especially when combined with alcohol that’s still being processed. If your stomach is already upset, an anti-inflammatory on an empty stomach can make nausea worse.
Acetaminophen (Tylenol) is often assumed to be the gentler choice, but it’s actually riskier in this situation. Your liver uses the same pathways to break down both acetaminophen and alcohol. When the liver is already busy processing alcohol, acetaminophen byproducts can accumulate and cause liver damage, even at normal doses. If you reach for a pain reliever, ibuprofen taken with food is generally the safer bet while your body is still clearing alcohol.
What You Drank Matters Too
Not all drinks produce equally bad hangovers, even at the same alcohol content. The difference comes down to congeners, chemical byproducts created during fermentation and aging. Darker, less-distilled drinks contain far more of them. Brandy contains up to 4,766 milligrams of methanol per liter. Vodka, one of the lowest-congener spirits, contains anywhere from zero to 102 milligrams per liter.
As a general rule, the more distilled a spirit is, the fewer congeners it contains. This is partly why “top shelf” liquors sometimes produce milder hangovers than cheaper alternatives. Homebrew is at the other end of the spectrum. Because home fermentation is harder to control, homemade beer or spirits can contain up to ten times the congener levels of commercial products. None of this helps you right now, but it’s worth remembering the next time you’re choosing what to drink.
Supplements With Some Evidence
Most hangover supplements are marketing wrapped around B vitamins, but a couple of options have actual clinical data behind them. Prickly pear extract, taken before drinking, cut the risk of a severe hangover in half in a randomized trial of 55 people published in JAMA Internal Medicine. The extract significantly reduced nausea, dry mouth, and loss of appetite, and lowered markers of inflammation by about 40% compared to placebo. The catch: you have to take it hours before you drink, so it’s a prevention tool, not a morning-after fix.
Red ginseng has shown some promise for the recovery side. In a crossover study of 25 men, a red ginseng drink consumed alongside whiskey led to significantly lower blood alcohol levels at the 30, 45, and 60-minute marks, along with reduced hangover severity. The effect appears to come from speeding up alcohol metabolism. Red ginseng is available as a drink or supplement, though dosing varies widely between products.
Sleep, Time, and What to Skip
Your body clears alcohol at a fixed rate of roughly 20 mg/dL per hour, and nothing you do can meaningfully accelerate that. Sleep is genuinely restorative here, not because it speeds metabolism, but because the neurological rebound from alcohol disrupts sleep quality. If you can, go back to bed. Even a couple of extra hours of real rest helps your brain recalibrate its signaling.
Skip the “hair of the dog.” Drinking more alcohol temporarily masks symptoms by reactivating the calming brain chemistry that’s currently in deficit, but it just delays and extends the hangover. You’re adding more acetaldehyde to a system that’s already struggling to clear it.
Exercise is a mixed bag. A light walk and fresh air can improve your mood and circulation, but anything intense risks worsening dehydration and can trigger a blood sugar crash. If you do move, keep it gentle and drink fluids before and during.
The honest bottom line: hydrate with electrolytes, eat carbs and protein, take ibuprofen with food if you need it, and give your body the 12 to 24 hours it needs to finish the job. Most hangovers peak around the time your blood alcohol hits zero and resolve within a day.