Most hangovers last about 18 hours after your last drink, peaking roughly 14 hours in, so the honest truth is that time is the only guaranteed cure. But several strategies can meaningfully reduce symptom severity and help your body recover faster. Here’s what actually works, what doesn’t, and why hangovers feel so terrible in the first place.
Why Hangovers Feel So Bad
When your liver processes alcohol, it creates a toxic byproduct called acetaldehyde. Normally, your liver neutralizes this compound by breaking it down into water and carbon dioxide. But when you’ve been drinking heavily, your liver can’t produce enzymes fast enough to keep up. That backlog of acetaldehyde is the main driver behind the headache, nausea, and general misery of a hangover.
On top of that, your liver prioritizes breaking down alcohol over its other jobs, including keeping your blood sugar stable. The result is a drop in blood glucose that causes shakiness, fatigue, confusion, and irritability. Alcohol also triggers inflammation throughout your body and acts as a diuretic, pulling water and electrolytes out faster than you can replace them. A hangover isn’t one problem. It’s several happening at once.
Rehydrate With Electrolytes, Not Just Water
Alcohol suppresses a hormone that helps your kidneys retain water, so by morning you’re significantly dehydrated. Plain water helps, but adding electrolytes (sodium, potassium, magnesium) speeds the process. Sports drinks, coconut water, or oral rehydration solutions all work. Broth is another solid option because it delivers sodium and fluid together while being easy on a queasy stomach. Aim to drink steadily rather than chugging large amounts at once, which can make nausea worse.
Eat to Restore Blood Sugar
Your liver was so busy processing alcohol overnight that it neglected its job of releasing stored glucose into your bloodstream. Eating is one of the fastest ways to feel better. Carbohydrate-rich foods like toast, crackers, oatmeal, or bananas bring blood sugar back up and ease that shaky, weak feeling. If you can manage something more substantial, eggs are a particularly good choice. They’re rich in an amino acid called L-cysteine, which helps your liver break down leftover acetaldehyde. Nuts and dairy contain this same compound.
Don’t force a large meal if you’re nauseous. Start small and eat more as your stomach settles. Even a few bites of toast with a glass of juice can make a noticeable difference within 20 to 30 minutes.
Choose the Right Pain Reliever
Ibuprofen or aspirin can help with a pounding headache, though both can irritate an already-sensitive stomach, so take them with food. The more important thing to know is what to avoid: acetaminophen (Tylenol). Your liver uses the same protective molecule, glutathione, to process both acetaminophen and alcohol. Heavy drinking depletes your glutathione stores, and adding acetaminophen on top of that can stress your liver further. Cleveland Clinic notes that acetaminophen toxicity accounts for nearly half of acute liver failure cases in North America. A single normal dose after one night of drinking is unlikely to cause harm in a healthy person, but it’s a risk worth knowing about, especially if you drink regularly.
Ginger for Nausea
If nausea is your worst symptom, ginger is a well-supported remedy. Ginger tea, ginger chews, or even flat ginger ale (the kind made with real ginger) can calm your stomach. The compounds in ginger help reduce nausea through the same pathways targeted by some prescription anti-nausea medications. It won’t fix dehydration or fatigue, but it can make the first few hours of a hangover significantly more bearable.
What Doesn’t Work
“Hair of the dog,” or drinking more alcohol the next morning, is the most persistent hangover myth. It does temporarily mask symptoms, but only because you’re adding more alcohol to your system. You’re not treating the hangover; you’re delaying it. Some people confuse hangover relief with treating alcohol withdrawal, but these are entirely different conditions. Withdrawal happens after prolonged chronic drinking. A hangover happens to anyone after a single heavy session. Another drink just gives your liver more work to do.
Coffee is another common go-to that has tradeoffs. Caffeine can ease a headache and reduce grogginess, but it’s also a mild diuretic, which can worsen dehydration. If you drink coffee, pair it with extra water.
What You Can Do Before Drinking
The most effective hangover strategy starts the night before. Eating a full meal before drinking slows alcohol absorption considerably, giving your liver more time to keep up. Alternating alcoholic drinks with water throughout the night reduces total alcohol intake and keeps you more hydrated.
Your choice of drink matters too. Darker spirits like brandy, red wine, and rum contain high levels of congeners, chemical byproducts of fermentation that worsen hangovers. Brandy, for example, contains roughly 4,766 milligrams of methanol per liter, compared to just 27 milligrams per liter in beer. A study comparing bourbon (high congeners) to vodka (low congeners) found that participants reported significantly worse hangovers after bourbon, even at the same alcohol dose. Sticking to lighter-colored drinks like vodka, gin, or light beer won’t prevent a hangover, but it can reduce severity.
One supplement with promising evidence is prickly pear extract, taken before drinking. Research found it cut the risk of a severe hangover roughly in half, with the strongest effects on nausea, dry mouth, and appetite loss. It’s available in capsule form at most supplement retailers.
The Realistic Timeline
Hangover symptoms typically begin as your blood alcohol level drops toward zero, often 6 to 8 hours after your last drink. They peak around 14 hours after drinking, which for most people means mid-morning the next day. The average hangover lasts about 18 hours from your last drink, or roughly 12 hours after waking up. For some people, symptoms stretch to 23 hours.
There’s no way to dramatically compress this timeline. But combining rehydration, food, a safe pain reliever, and rest addresses most of the underlying problems at once: dehydration, low blood sugar, inflammation, and acetaldehyde buildup. You won’t feel perfect in an hour, but you’ll feel meaningfully better than if you just white-knuckled it on the couch.