Here’s a useful fact for any smug relatives who brag about going for a run the morning after their Christmas party: you can’t sweat out toxins. “Toxins” is a broad term, explains Adam Taylor, a professor of anatomy at Lancaster Medical School. It covers anything that can harm the body—from heavy metals to chemicals in plastics, as well as the normal byproducts of our metabolism. Your liver is designed to process the toxins in alcohol, breaking them down into usable parts or preparing them for removal. These waste products are then filtered from your blood and excreted in your urine or stool.
Sweat, however, has a very different job. While it can contain tiny amounts of some metabolic byproducts, its primary purpose is to regulate body temperature (and, in some cases, to signal stress or fear). “Sweating is not the means to remove toxins,” says Taylor. “Going for a run or sitting in a sauna after a night of drinking won’t reduce the toxins produced by metabolizing alcohol, and it won’t lower your blood alcohol level.”
In fact, there’s no way to speed up alcohol detoxification. Each person metabolizes it at a fairly fixed rate.
So why does hitting the gym or sitting in a sauna feel good when you’re hungover? Both activities are known to boost endorphins—the body’s natural “feel-good” chemicals—and to reduce cortisol, which can leave us feeling anxious or on edge. They also improve circulation, relax tight muscles, and stimulate the “rest and digest” part of the nervous system, all of which can make recovery feel easier. But this is about managing symptoms, not speeding up detoxification.
If you do choose to sweat when you’re hungover, Taylor advises making hydration a priority. “Alcohol depletes water from the body, and sweating increases fluid loss, raising the risk of dehydration and tissue inflammation.”
Frequently Asked Questions
Frequently Asked Questions Sweating Out a Hangover
Beginner Questions
What does sweating out a hangover mean
Its the idea that exercising or sitting in a sauna to make yourself sweat can help your body process and eliminate the toxins from alcohol faster thereby curing a hangover
Is sweating out a hangover a real thing
No its a common myth While sweating might make you feel temporarily better it does not speed up the metabolism of alcohol or its byproducts in a meaningful way to cure a hangover
Why do people think sweating helps
People may feel better after light exercise due to the release of endorphins and improved circulation which can be mistaken for the hangover itself being sweated out
Can I just use a sauna or hot bath instead
Using intense heat while dehydrated from a hangover can be dangerous leading to further dehydration dizziness or even fainting Its not a recommended cure
Intermediate Questions
What actually causes a hangover
A hangover is caused by a combination of factors dehydration inflammation stomach irritation poor sleep and the toxic byproduct of alcohol metabolism called acetaldehyde Your liver needs time to process these
If sweating doesnt work what does help a hangover
The most effective approach is time rest and supportive care drinking water or electrolyte beverages eating a light bland meal and getting sleep Pain relievers like ibuprofen can help
Can light exercise ever be a good idea
A very gentle walk in fresh air might improve your mood and circulation but strenuous exercise will likely worsen dehydration and fatigue Listen to your body and prioritize rehydration first
Does sweating release alcohol toxins
Only a tiny fraction of alcohol is excreted unchanged through sweat urine and breath The vast majority must be metabolized by your liver and sweating does not accelerate this process
Advanced Practical Questions
Could sweating it out actually be harmful
Yes A hangover means your body is already dehydrated and stressed Vigorous exercise or excessive heat exposure increases fluid and electrolyte loss potentially worsening headaches nausea and fatigue and putting strain
