Hair Of The Dog

But you may wonder whether that really works or whether you’re just prolonging the inevitable and will end up with an even worse hangover.

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This article tells you whether the “hair of the dog” hangover cure has any merit.

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The expression “hair of the dog” is shortened from “hair of the dog that bit you.”

It comes from the age-old idea that sometimes the cause of an ailment can also be its cure (1).

In the case of a hangover, “hair of the dog” means drinking more alcohol to relieve sầu unpleasant symptoms lượt thích headađậy, dehydration, upphối stomach, và fatigue.

This is a relatively common practice, with 11% of social drinkers reporting that they have consumed alcohol khổng lồ get rid of a hangover at least once in the last year (2).


The “hair of the dog” hangover cure involves drinking more alcohol to reduce hangover symptoms.

Does It Work?

The “hair of the dog” hangover cure has not been well-studied, but a few theories exist as lớn why it may help you feel better the morning after heavy drinking.

Raises Your Blood Alcohol Level

A hangover develops as your toàn thân breaks down alcohol. Symptoms appear to be worst when blood alcohol levels return to lớn zero (3, 4).

The theory behind the “hair of the dog” hangover remedy is that if you drink more alcohol, your blood alcohol levels will rise and you will no longer experience hangover symptoms.

However, when you eventually stop drinking và blood alcohol levels return to lớn zero, the hangover will return.

In some sense, “hair of the dog” can prolong the time until you experience a hangover — but it cannot prsự kiện it entirely.

Boosts Endorphins

It has been claimed that drinking alcohol boosts endorphins, which can help mask uncomfortable hangover symptoms.

Research shows that alcohol indeed temporarily raises endorphin levels, leading to lớn pleasurable feelings. However, during alcohol withdrawal, endorphin levels drop (5).

This endorphin surge & crash also likely plays a role in the addictive sầu properties of alcohol (6, 7).

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While an alcohol-related endorphin boost may temporarily distract you from hangover symptoms, these symptoms will return when you stop drinking.

Slows the Production of Hangover-Inducing Compounds

Alcoholic beverages can contain small amounts of chemicals known as congeners, which form during the alcohol fermentation process.

It’s believed that these compounds contribute lớn the severity of a hangover, independent of the effects of alcohol (8).

One example of a congener often found in wine, beer, and some spirits is methanol.

Your toàn thân can convert methanol to toxic chemicals called formic acid & formaldehyde, which are associated with increased hangover severity (9, 10).

However, since alcohol & methanol are broken down by the same mechanism within your toàn thân, drinking more alcohol can allow methanol to lớn be excreted, rather than turned into these toxic chemicals (11).

While the “hair of the dog” hangover cure may have some merit, it also adds more alcohol to lớn your body toàn thân that will eventually need to be metabolized.

So while your hangover might be delayed, it will not be prevented entirely.


The “hair of the dog” hangover remedy can temporarily make you feel better by boosting endorphins và slowing the creation of toxic compounds, but the hangover will return when you stop drinking.

Drinking more alcohol lớn cure a hangover may lead to an even worse hangover when you stop.

Research shows that hangovers tend khổng lồ worsen over time during periods of heavy drinking (12).

Additionally, drinking alcohol to lớn relieve sầu a hangover is linked khổng lồ higher rates of alcohol abuse and may normalize unhealthy drinking patterns.

For this reason, the “hair of the dog” remedy is not recommended (1).

The only guaranteed way to lớn avoid a hangover is khổng lồ not drink or drink in moderation.

Keeping your blood alcohol level below 0.1% can reduce the likelihood of feeling hungover the next day (13, 14).


Drinking more alcohol to lớn reduce a hangover is not recommended, as it may lead to an even worse hangover & increase your risk of alcohol abuse.

Choosing alcoholic beverages with low amounts of congeners may help reduce hangover severity.

Highly distilled spirits like vodka have the lowest amounts, while darker spirits lượt thích whiskey và bourbon have sầu the most (15).

Studies show that choosing vodka over these other forms of alcohol can lead to lớn less severe hangovers (8).

One animal study also found that mixing alcohol with energy drinks led khổng lồ more severe hangovers than alcohol alone, but human studies are needed (16).

Mixing alcohol with energy drinks may also increase the desire to drink, leading to greater alcohol consumption and a more severe hangover (17).

However, the overall amount of alcohol consumed has a much greater impact on hangover severity than the type of alcohol consumed.


Highly purified forms of alcohol, like vodka, may cause less intense hangovers than darker liquors or liquor mixed with energy drinks. However, the amount of alcohol consumed is still a bigger factor.