Most hangovers resolve on their own within 24 hours, but the right combination of fluids, food, rest, and timing can cut the misery significantly shorter. Symptoms typically peak the morning after heavy drinking, right as your blood alcohol level drops to zero, which means by the time you feel the worst, the alcohol itself is largely gone. What you’re dealing with is the aftermath: dehydration, inflammation, depleted nutrients, and a toxic byproduct your liver is still clearing out.
Why You Feel This Bad
When your liver breaks down alcohol, the first thing it produces is a compound with properties similar to formaldehyde. This byproduct is what drives the headache, nausea, and overall awful feeling. Normally, your liver converts it into something harmless pretty quickly. But after heavy drinking, the sheer volume overwhelms the process, and the toxic compound lingers. Some people, particularly those of East Asian descent, carry a genetic variation that makes this conversion even slower, which is why they tend to get worse hangovers.
On top of that, alcohol triggers your body to release inflammatory molecules called cytokines, the same ones involved when you’re fighting off a cold. That’s why a hangover can feel eerily like being sick: fatigue, body aches, brain fog. Alcohol also suppresses a hormone that tells your kidneys to retain water, so you lose far more fluid than you take in. The result is a combination of dehydration, inflammation, and low blood sugar all hitting at once.
Rehydrate With More Than Just Water
Water helps, but it doesn’t replace the electrolytes you’ve lost. Sodium, potassium, and magnesium all get flushed out during a night of heavy drinking, and plain water doesn’t contain any of them. Without enough sodium, your kidneys actually flush out the water you just drank rather than absorbing it. That’s why you can chug water and still feel parched.
An electrolyte drink designed for rehydration (like Pedialyte) contains two to three times more electrolytes and about 25 to 50 percent less sugar than a typical sports drink. The specific ratio of sugar and salt helps pull fluid into your bloodstream faster than water alone. If you don’t have one handy, coconut water or a sports drink will still do more than water by itself. Start drinking before bed if you can, or first thing in the morning.
What to Eat for Faster Recovery
Your liver prioritizes processing alcohol over maintaining your blood sugar. That means after a night of drinking, your blood sugar can drop low enough to cause shakiness, weakness, and confusion. Eating is one of the fastest ways to start feeling human again.
The classic BRAT foods (bananas, rice, applesauce, toast) work well because they’re gentle on a queasy stomach and provide the carbohydrates your body needs to stabilize blood sugar. Bananas are especially useful since they’re rich in potassium, one of the key electrolytes you’ve lost. Fruits in general pull double duty: their natural sugars may help your body clear alcohol byproducts faster, and their water content aids rehydration.
If your stomach can handle something more substantial, salmon or other fatty fish contain omega-3 fatty acids that help tamp down the inflammatory response driving your fatigue and aches. Eggs are another strong choice because they contain B vitamins, particularly B6 and B12, which heavy drinking depletes. Your body uses these vitamins to break down and eliminate alcohol, so replenishing them supports the recovery process. If nausea is your main problem, ginger (as tea, ginger ale, or even raw) has genuine evidence behind it for settling an upset stomach.
Pain Relief: Choose Carefully
Reaching for a painkiller is tempting, but the wrong choice can make things worse. Acetaminophen (Tylenol) and alcohol are both processed by your liver, and combining them puts serious strain on it. Acetaminophen overdose is the most common cause of acute liver failure, and alcohol lowers the threshold for what counts as “too much.” Avoid it while hungover.
Ibuprofen (Advil, Motrin) or naproxen (Aleve) are generally the better option for a hangover headache, since they also reduce inflammation. That said, these can irritate your stomach lining, especially alongside alcohol’s effects on your gut. Take them with food and water rather than on an empty stomach.
Skip the Coffee
Coffee feels like the obvious fix, but it can actually slow your recovery. Caffeine is a diuretic, meaning it makes you urinate more, which is the opposite of what you need when you’re already dehydrated. It can also raise blood pressure and constrict blood vessels, which may intensify rather than relieve a pounding headache. If you’re a regular coffee drinker and skipping it would give you a caffeine withdrawal headache on top of everything else, a small cup with plenty of water alongside it is a reasonable compromise. But coffee is not a hangover cure.
A Supplement That Actually Works
Most “hangover cure” supplements are overpriced placebos, but one compound has real science behind it. Dihydromyricetin (DHM), extracted from the Japanese raisin tree, has been shown to activate a cascade of mechanisms that speed up alcohol metabolism. Specifically, it triggers your liver to produce more of the enzymes that break down both alcohol and its toxic byproduct, and it boosts how efficiently those enzymes work. Research from USC also found that DHM reduces the inflammatory cytokines that contribute to hangover symptoms and decreases fat buildup in liver tissue. It’s available as an over-the-counter supplement, and it works best when taken shortly after drinking or before bed rather than the morning after.
Why Last Night’s Drink Choice Matters
Not all alcohol produces equally bad hangovers. Darker spirits contain higher levels of congeners, which are chemical byproducts of fermentation. Your body has to break down congeners separately from the alcohol itself, and the two processes compete for the same resources. This means the alcohol and its toxic byproducts linger longer in your system. Congeners also stimulate the release of stress hormones that fuel inflammation and fatigue.
The congener hierarchy is steep. Brandy, red wine, and rum sit at the top, with brandy containing as much as 4,766 milligrams per liter of methanol alone. Whiskey, white wine, and gin fall in the middle range. Vodka and beer sit at the bottom, with vodka containing as little as zero to 102 milligrams per liter of key congeners. This won’t help you today, but it’s worth remembering next time: choosing lighter-colored drinks with fewer congeners genuinely produces milder hangovers.
The Recovery Timeline
Hangover symptoms begin as your blood alcohol level approaches zero, which is why you often feel fine going to bed but wake up miserable. Most people hit peak symptoms within a few hours of waking. From there, the body clears the remaining toxic byproducts and restores fluid balance gradually. The full process can take up to 24 hours for a severe hangover, though most people feel significantly better by the afternoon if they’re eating, hydrating with electrolytes, and resting. Sleep is genuinely restorative here, since alcohol disrupts sleep quality even when you’re unconscious for hours, and your body does its best repair work during actual restful sleep.
There’s no instant cure, but the difference between doing nothing and actively rehydrating, eating the right foods, and managing inflammation is often the difference between a full-day ordeal and feeling mostly functional by lunch.