There is no way to get undrunk quickly. Your liver breaks down alcohol at a fixed rate of about one standard drink per hour, and nothing you do, drink, eat, or take will speed that up. If you’ve had five drinks, you’re looking at roughly five hours before the alcohol is fully out of your system. That said, there are things you can do to feel better and function more clearly while you wait, and there are popular tricks that flat-out don’t work.
Why You Can’t Speed Up Sobriety
Your liver processes alcohol using a specific set of enzymes, and those enzymes work at a near-constant pace regardless of what you do. Think of it like a toll booth with one lane open: cars can only get through one at a time, no matter how long the line is. Drinking water, exercising, or eating a big meal after you’re already drunk won’t add another lane.
How fast your particular liver works depends on genetics, body size, sex, overall nutrition, and how often you drink. Women generally metabolize alcohol more slowly than men at the same body weight. People with certain genetic variations in their liver enzymes process alcohol at slightly different speeds. But these differences are modest. No one’s body clears alcohol dramatically faster than the one-drink-per-hour average.
What Coffee, Cold Showers, and Exercise Actually Do
Coffee is the most common attempt at sobering up, and it genuinely does not work. Caffeine does not lower your blood alcohol level at all. What it can do is partially reverse the sleepy, sedated feeling that alcohol causes. Research from UAMS Health confirms that people below the legal limit performed slightly better on concentration tests after coffee, but their alcohol levels stayed exactly the same. The danger here is real: you feel more alert while still being just as impaired, which can lead you to drive or make decisions you wouldn’t otherwise make.
Cold showers fall into the same category. A blast of cold water will shock you awake and might make you feel sharper for a few minutes, but it has zero effect on how fast your body eliminates alcohol. The Hazelden Betty Ford Foundation puts it plainly: a cold shower makes sobering up a cleaner experience, not a faster one.
Exercise doesn’t help either. While a small amount of alcohol leaves your body through sweat and breath, the vast majority is processed by the liver. You cannot sweat out a meaningful amount of alcohol, and exercising while intoxicated increases your risk of injury, dehydration, and heart strain.
What Actually Helps You Feel Better
You can’t lower your blood alcohol level faster, but you can address the symptoms that make being drunk miserable: dehydration, low blood sugar, nausea, and brain fog.
Drinking water is the simplest and most effective comfort measure. Alcohol suppresses a hormone that tells your kidneys to retain water, so you lose fluids much faster than normal. Sipping water or a drink with electrolytes (sodium, potassium, magnesium) won’t sober you up, but it will reduce the headache, dry mouth, and fatigue that come with dehydration. Alternating water with alcoholic drinks, if you’re still drinking, slows your overall intake too.
Eating food helps, but the timing matters. Food eaten before or during drinking has a significant effect on how drunk you get in the first place. One study found that eating a full meal reduced the amount of alcohol available for absorption to only 66-71% of what it would be on an empty stomach. That’s a meaningful difference. Eating after you’re already drunk helps less, because most of the alcohol has already entered your bloodstream. Still, a meal can stabilize blood sugar and settle your stomach, which makes the wait more comfortable.
Rest is underrated. Lying down in a safe place, on your side in case you vomit, lets your body focus its energy on processing the alcohol. Sleep doesn’t speed up metabolism, but it lets time pass while your liver does its job.
IV Drips and Hangover Clinics
Hangover IV services have become popular in major cities, offering intravenous fluids, electrolytes, vitamins, and sometimes anti-nausea medication. These drips rehydrate you faster than drinking water because the fluid goes directly into your bloodstream. According to the University of Rochester Medical Center, the ingredients help ease symptoms like nausea and headache.
What IV drips don’t do is clear alcohol from your system any faster. They’re a more expensive version of drinking water and taking a vitamin, and they address dehydration symptoms rather than intoxication itself. If you’re looking for relief from a hangover the morning after, they may help you feel better sooner. If you’re trying to sober up right now to drive or function, they won’t get you there.
A Realistic Timeline
The math is straightforward. Count your standard drinks (one beer, one glass of wine, or one shot of liquor each count as one), then figure roughly one hour per drink from when you stopped. If you had four drinks between 8 and 10 p.m., your body needs until about 2 a.m. to fully process the alcohol. Heavier pours, stronger drinks, or cocktails with multiple shots compress more alcohol into fewer glasses, so your actual count may be higher than you think.
Your blood alcohol level peaks about 30 to 90 minutes after your last drink, depending on whether you ate. So you may actually feel more drunk after you stop drinking, not less. This is normal and not a reason to panic, but it’s worth knowing if you’re waiting to feel “good enough” to do something.
When Intoxication Becomes an Emergency
Most of the time, being too drunk is uncomfortable but not dangerous. Sometimes it is. Alcohol poisoning is a medical emergency, and the symptoms look like this:
- Confusion beyond normal drunkenness, or inability to respond
- Vomiting while semiconscious or unconscious
- Seizures
- Slow breathing: fewer than eight breaths per minute
- Irregular breathing: gaps of 10 seconds or more between breaths
- Skin that looks blue, gray, or pale
- Low body temperature
- Inability to stay conscious or be woken up
You don’t need to see all of these symptoms to call for help. According to the Mayo Clinic, a person with alcohol poisoning who has passed out or can’t be woken up could die. “Sleeping it off” is not a safe strategy when someone is unresponsive. If you’re unsure, call emergency services. Getting it wrong in one direction is embarrassing. Getting it wrong in the other is fatal.