Nothing you do will make alcohol leave your body faster in any meaningful way. Your liver processes alcohol at a fixed rate of about .015 to .020 BAC per hour, which means someone at the legal limit of .08 BAC will take roughly four to five hours to reach zero. That timeline is largely non-negotiable. But there are things you can do to feel better, stay safe, and avoid making a bad situation worse while you wait.
Why Time Is the Only Real Answer
Your liver breaks down alcohol using a specific enzyme, and that enzyme works at a set pace regardless of what else you do. Think of it like a single-lane toll booth: cars can only get through one at a time, no matter how long the line is. For most people, this means eliminating roughly one standard drink per hour, though body size, biological sex, food intake, and liver health all shift that number slightly.
This is the core reality that every other piece of advice has to be measured against. Anything that claims to “speed up” sobering is either doing nothing to your BAC or just masking how impaired you actually are.
What Doesn’t Work
Cold showers, exercise, and coffee are the three most popular suggestions, and none of them reduce the amount of alcohol in your blood. The Virginia Department of Forensic Science puts it plainly: only the passage of time will sober someone up.
Coffee deserves special attention because it’s the most dangerous myth. Caffeine makes you feel more alert, but it does not reduce alcohol’s effects on your body. The CDC warns that this combination creates a “wide-awake drunk,” someone who feels less impaired than they actually are. That false confidence can lead to drinking more, driving when you shouldn’t, or misjudging how well you’re functioning. You’re just as impaired, you just don’t realize it.
Throwing up doesn’t help much either, once you’re already feeling drunk. Most of the alcohol has already moved from your stomach into your bloodstream. Forcing yourself to vomit mostly just risks dehydration and damage to your throat and teeth.
What Actually Helps While You Wait
You can’t speed up the clock, but you can make the wait more comfortable and reduce the toll on your body.
Eating food is one of the few things with real physiological value. Research from Johns Hopkins University found that consuming food while drinking increases the rate of alcohol elimination from the bloodstream by 25 to 45 percent. The benefit is strongest when you eat before or during drinking, since food slows how quickly alcohol reaches your small intestine (where most absorption happens). Eating after you’re already drunk helps less, but it still stabilizes blood sugar and can ease nausea.
Drinking water won’t lower your BAC, but alcohol is a diuretic, meaning it pulls fluid out of your body. Dehydration is responsible for a lot of what makes a hangover miserable: headaches, dizziness, dry mouth, fatigue. Alternating water between alcoholic drinks is ideal, but even hydrating after the fact helps. Sports drinks or anything with electrolytes can replace what you’ve lost.
Resting or sleeping lets your body focus its energy on processing the alcohol. If you can get somewhere safe and lie down, you’re doing the single most productive thing possible. Your liver doesn’t need you awake to do its job.
Staying Safe While Intoxicated
If you’re helping someone who’s very drunk, or you’re trying to take care of yourself, safety matters more than comfort. The biggest physical risk for a heavily intoxicated person is choking on vomit while unconscious.
If someone passes out or can’t stay awake, place them in the recovery position: on their side with their head tilted slightly up to keep the airway open. Raise the arm closest to you above their head, gently roll them toward you, and tuck their nearest hand under their cheek to keep their face off the floor. Check on them frequently. Do not leave them alone, and do not give them food, drink, or medication.
Stop drinking. This sounds obvious, but it’s the single most effective thing you can do if you’re still at a party or bar. Every additional drink resets the clock. If you’ve had four drinks and stop now, your body can start making progress. If you keep sipping, you’re feeding more cars into that single-lane toll booth.
Signs That Need Emergency Help
There’s a line between “very drunk” and alcohol poisoning, and it can be hard to spot in the moment. The National Institute on Alcohol Abuse and Alcoholism identifies these warning signs of an alcohol overdose:
- Inability to wake up or stay conscious
- Vomiting while unconscious or semi-conscious
- Seizures
- Breathing that’s slow (fewer than 8 breaths per minute) or irregular (gaps of 10 seconds or more between breaths)
- Clammy skin, bluish skin color, or extreme paleness
- No gag reflex
You do not need to see all of these symptoms before calling 911. A person who has passed out from drinking can die from respiratory failure or choking. If something looks wrong, call for help. It is always better to be cautious.
Realistic Timelines to Expect
Knowing how long you’ll actually need to wait can help you plan. At a metabolic rate of .015 BAC per hour, here’s roughly how long it takes to reach zero from different levels of intoxication:
- 3 standard drinks (BAC around .05): about 3 to 4 hours
- 5 standard drinks (BAC around .08): about 4 to 5 hours
- 8 standard drinks (BAC around .13): about 7 to 9 hours
- 12 standard drinks (BAC around .20): about 11 to 13 hours
These are rough estimates. A smaller person, someone with less liver mass, or someone drinking on an empty stomach may take longer. The key point is that a night of heavy drinking doesn’t end when you stop drinking. If you had your last drink at midnight and consumed eight drinks, you may not be at zero until the next morning. Many people are still legally impaired when they drive to work the day after a big night out, without realizing it.
The honest answer to “what can I do to sober up” is: drink water, eat something, stop drinking, get somewhere safe, and wait. Your body knows what to do. It just can’t be rushed.