There is no way to quickly sober up. Your liver processes alcohol at a fixed rate of about one standard drink per hour, and nothing you do will meaningfully speed that up. No supplement, no trick, no home remedy changes this basic biology. But there are things you can do to feel better, stay safe, and avoid making your situation worse while your body does its work.
Why You Can’t Speed Up Sobriety
Your liver breaks down alcohol using enzymes that work at a steady, limited pace. The average body clears blood alcohol concentration (BAC) at a rate of .015 to .020 per hour. That works out to roughly one standard drink per hour: a 12-ounce beer, a 5-ounce glass of wine, or a 1.5-ounce shot of liquor.
If you’ve had five drinks, you’re looking at roughly five hours before your body fully processes the alcohol. There’s no shortcut around this timeline. Your liver can only produce so much of the enzyme that breaks alcohol down, and flooding your system with coffee or cold water doesn’t give it more capacity.
Things That Don’t Work
Cold showers, fresh air, exercise, and black coffee will not sober you up. The California Department of Alcoholic Beverage Control states this plainly: time is the only thing that removes alcohol from your system. These remedies persist as myths because some of them make you feel more alert, which people confuse with being less drunk.
Caffeine is the most common offender here. The CDC is clear that caffeine does not reduce the effects of alcohol on your body. What it does is mask your drowsiness, which can actually be dangerous. You feel more awake, so you overestimate how sober you are. This is why mixing energy drinks with alcohol increases the likelihood of risky decisions like driving. You’re just as impaired, but you don’t feel like it.
A cold shower works similarly. The shock of cold water triggers an adrenaline response that makes you feel more alert for a few minutes. Your BAC hasn’t budged. You’re also now a drunk person standing in a slippery shower, which introduces its own risks.
Exercise won’t help either. While physical activity does increase your metabolic rate in general, it doesn’t meaningfully accelerate alcohol metabolism. You’ll sweat, feel more tired, and potentially get dehydrated faster, since alcohol is already a diuretic.
What About Supplements?
You may have seen products containing dihydromyricetin (DHM), a compound extracted from a plant used in traditional Chinese medicine, marketed as a way to sober up or prevent hangovers. Animal studies have shown some promise. But as of the most recent clinical trial data, there have been no controlled human studies published that have assessed the safety, proper dosing, or effectiveness of DHM for alcohol metabolism. A Phase 1 trial is underway, but it’s testing basic safety in healthy volunteers, not proving it works as a sobering agent. Any product claiming DHM will help you sober up is getting ahead of the science.
What Actually Helps While You Wait
You can’t speed the clock, but you can make the next few hours more comfortable and safer.
Eat something. Food slows the rate at which alcohol moves from your stomach to your small intestine, where most absorption happens. Eating before drinking is ideal, but eating while you’re already drunk still helps. Research from Johns Hopkins University shows that consuming food while drinking increases the rate of alcohol elimination from the bloodstream by 25 to 45 percent. That’s not dramatic enough to sober you up quickly, but it’s the closest thing to a real physiological boost that exists. Go for something substantial with fat, protein, and carbohydrates rather than a handful of crackers.
Drink water. Alcohol suppresses a hormone that tells your kidneys to retain water, which is why you urinate more when you drink. This leads to dehydration, which makes you feel worse on top of the alcohol itself. Headaches, dizziness, and fatigue are often partly dehydration symptoms layered on top of intoxication. Drinking water won’t lower your BAC, but it will address dehydration and may reduce how terrible you feel. Alternating water with any remaining alcoholic drinks also gives your body more time between each dose of alcohol.
Stop drinking. This sounds obvious, but it’s the single most effective thing you can do. Every additional drink resets the clock. If your last drink was at midnight and you had five drinks total, you’re looking at roughly 5 a.m. before you’re fully sober. Adding another drink at 1 a.m. pushes that timeline out further.
Rest. Sleep doesn’t speed up metabolism either, but it lets time pass while your body does its work. Lie on your side rather than your back, especially if you feel nauseous, to reduce the risk of choking if you vomit.
How Long Sobriety Actually Takes
A rough guide based on the one-drink-per-hour rule:
- 3 standard drinks: approximately 3 hours to fully clear
- 5 standard drinks: approximately 5 hours
- 8 standard drinks: approximately 8 hours
- 10 standard drinks: approximately 10 hours
These are estimates for an average adult. Body weight, biological sex, liver health, whether you’ve eaten, and how quickly you drank all shift the timeline. Women generally metabolize alcohol more slowly than men at the same body weight due to differences in body composition and enzyme levels. Someone with liver damage will process alcohol more slowly still.
Keep in mind that “feeling sober” and actually being sober are not the same thing. You can feel functional while still having a BAC above the legal driving limit of .08. If you drank heavily the night before, you may still be legally impaired the next morning.
When Someone Needs Emergency Help
If you’re searching how to sober someone up because they seem dangerously intoxicated, know the warning signs of alcohol overdose. According to the National Institute on Alcohol Abuse and Alcoholism, these are the critical signals:
- Mental confusion or stupor
- Inability to stay conscious or wake up
- Vomiting while unconscious or semiconscious
- Seizures
- Slow breathing (fewer than 8 breaths per minute)
- Long gaps between breaths (10 seconds or more)
- Clammy skin, bluish skin color, or extreme paleness
- Very low body temperature
You do not need to see all of these symptoms to call 911. A person who has passed out from alcohol can die from respiratory failure, choking on vomit, or dangerously low body temperature. Do not try to “walk it off” with them, give them coffee, or put them in a cold shower. Call for help, keep them on their side, and stay with them until help arrives.