Dizziness after drinking comes from alcohol disrupting several systems at once: your inner ear balance sensors, your blood sugar, and your blood pressure. The good news is that a combination of simple strategies before, during, and after drinking can significantly reduce or prevent that unsteady, spinning feeling. Here’s what’s actually happening in your body and what you can do about it.
Why Alcohol Makes You Dizzy
Alcohol affects your sense of balance through at least three distinct mechanisms, which is why post-drinking dizziness can feel so overwhelming.
The first involves your inner ear. Your balance system relies on fluid-filled canals in each ear that detect motion. Alcohol changes the density of these fluids at different rates, which sends false movement signals to your brain. Your brain interprets these signals as spinning, even though you’re sitting still. This is what causes “the spins,” especially when you lie down or close your eyes.
The second mechanism is a drop in blood sugar. Your liver prioritizes breaking down alcohol over its normal job of producing glucose. Alcohol metabolism shifts the liver’s internal chemistry in a way that stalls glucose production, so if you haven’t eaten enough or your glycogen stores are low, your blood sugar can drop. Low blood sugar on its own causes lightheadedness, shakiness, and difficulty concentrating.
The third is a blood pressure drop. Alcohol relaxes your blood vessels, which lowers blood pressure. Normally, when you stand up, your blood vessels tighten to keep blood flowing to your brain. A study published in Circulation found that alcohol essentially disables this reflex. In healthy volunteers, the drop in systolic blood pressure when shifting to an upright position was twice as large after alcohol compared to placebo (14 mmHg versus 7 mmHg). This is why standing up too fast after drinking can make the room tilt.
Eat Before and During Drinking
The single most effective thing you can do is avoid drinking on an empty stomach. Food in your stomach slows the rate at which alcohol enters your bloodstream, which gives your body more time to process it and reduces the peak blood alcohol concentration you hit.
Focus on foods that combine protein, fat, and complex carbohydrates. A meal with chicken or fish, some vegetables, and a starch like rice or bread works well. The fat and protein slow digestion, while the carbohydrates help maintain your blood sugar as your liver shifts its attention to metabolizing alcohol. Snacking throughout the night, even on something small like nuts or crackers, helps keep glucose available and reduces the chances of that shaky, lightheaded feeling later.
Choose Your Drinks Carefully
Not all alcoholic drinks are equal when it comes to how rough you’ll feel afterward. Dark liquors like bourbon, whiskey, and brandy contain significantly more congeners, which are toxic byproducts of fermentation. Bourbon contains roughly 37 times the amount of congeners as vodka. A controlled study comparing the two found that bourbon produced noticeably worse hangover symptoms, including more intense malaise, than vodka at the same alcohol dose.
If you’re prone to dizziness, sticking to lighter-colored spirits like vodka or gin, or lighter beers and dry wines, may help. The alcohol itself is still the main culprit, but you’re removing an additional source of irritation.
Alternate With Water
Alcohol is a diuretic, meaning it makes you urinate more than the volume of fluid you’re taking in. Dehydration thickens your blood, lowers your blood volume, and makes the blood pressure drops described earlier even worse. Drinking a glass of water between each alcoholic drink slows your overall alcohol intake and keeps you better hydrated. Before bed, drink another full glass or two of water. This won’t eliminate dizziness, but it takes one contributing factor off the table.
How to Stop the Spins Right Now
If you’re already dizzy, there are a few techniques that can help your brain recalibrate. These are the same approaches used for patients with other balance disorders, adapted for alcohol-related vertigo.
- Keep your eyes open and focus on a fixed object. Pick something nearby, like a lamp or a doorframe, and stare at it. Your visual system sends competing information to your brain that overrides the false spinning signals from your inner ear.
- Sit upright and plant your feet firmly on the floor. This gives your brain a reliable reference point through touch and pressure sensors in your feet and legs. The contact with a solid surface helps convince your brain that you are, in fact, stationary.
- If you need to lie down, elevate your head. Propping your head and upper back up to at least a 45-degree angle with pillows can reduce the intensity of positional vertigo. Lying completely flat tends to make the spinning worse because it shifts the fluid in your inner ear canals.
Both the visual fixation and foot-on-floor methods work by giving your brain trustworthy sensory data from other systems. As Dr. Matthew Crowson of Mass Eye and Ear explains it, you’re encouraging your body to use other senses to override the false messages reaching your brain.
Best Sleeping Position After Drinking
Lying flat in bed is often when the spins hit hardest, because you’ve removed visual input (eyes closed) and gravitational cues (lying down) that normally help your brain orient itself. Sleeping with your head elevated at roughly 45 degrees, using stacked pillows to prop up your upper back and neck, can meaningfully reduce the spinning sensation.
Sleeping on your side is also important for safety, since it protects your airway if you vomit. If you notice the dizziness is worse when you turn to one side, try facing the other direction. Inner ear disruptions sometimes affect one ear more than the other, and keeping the more affected ear facing upward can help.
Pace Yourself and Know Your Limits
Your body metabolizes roughly one standard drink per hour. A standard drink is 12 ounces of beer, 5 ounces of wine, or 1.5 ounces of liquor. Anything faster than that pace causes alcohol to accumulate in your bloodstream, intensifying all three dizziness mechanisms at once. Spreading your drinks out over more time is one of the simplest ways to avoid the worst of it.
Pay attention to how your body responds. People vary widely in how quickly they metabolize alcohol based on body weight, genetics, liver enzyme activity, and whether they’ve eaten. If you consistently get dizzy after a certain number of drinks, that’s your body telling you where your personal threshold is.
When Dizziness Signals Something Serious
Normal post-drinking dizziness is unpleasant but resolves on its own within several hours. Certain symptoms, however, indicate alcohol poisoning, which is a medical emergency. Call 911 if someone who has been drinking shows confusion, repeated vomiting, seizures, slow breathing (fewer than eight breaths per minute), or an inability to stay conscious. Alcohol poisoning can affect breathing, heart rate, and body temperature, and waiting to see if it resolves on its own can be fatal.
Dizziness that persists for more than 24 hours after your last drink, or that comes with hearing changes, severe headache, or loss of coordination on one side of the body, is worth getting evaluated. These symptoms go beyond the normal effects of alcohol on your inner ear and blood sugar.