Weed hangovers are a common phenomenon experienced by individuals after consuming marijuana [1]. Despite limited research, anecdotal reports and a small 1985 study suggest the existence of weed hangovers.

In the study, participants who smoked cannabis with 2.9% THC displayed residual effects the following day, while those who received placebos did not.

What is a Weed Hangover?

A weed hangover refers to the lingering effects felt after the initial high from marijuana has worn off, often experienced the following day. Unlike its alcohol-induced counterpart, a weed hangover is characterized by subtle symptoms such as mild fatigue, haziness in cognitive functions, dry eyes, and sometimes a slight headache.

These after-effects vary widely among individuals, influenced by factors such as the amount consumed, the potency of the strain, and personal sensitivity to cannabis. While not everyone who consumes marijuana experiences a weed hangover, for those who do, it's a gentle reminder of the plant's potent effects on the body and mind.  These effects can include fatigue, brain fog, dry mouth, and other symptoms that can affect your daily activities.

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Symptoms of a Weed Hangover

Symptoms of a weed hangover can manifest in a variety of subtle yet discernible ways, painting a complex picture of the after-effects of marijuana consumption. Individuals might wake to find themselves grappling with a sense of mental fog or grogginess, making it challenging to kickstart their day with the usual clarity and alertness.

Physical signs such as dry eyes, dehydration, and a lingering lethargy further characterize this condition, subtly echoing the previous day's indulgence. Some may also experience slight headaches or a diminished appetite, adding layers to the weed hangover's multifaceted nature.

These symptoms, while generally mild compared to those of alcohol hangovers, serve as a testament to cannabis's impactful interaction with the body's systems. 

The symptoms of a weed hangover can vary from person to person, but some common symptoms include:

  • Fatigue: This is one of the most common symptoms of a weed hangover. You may feel tired and lethargic, even after a full night's sleep.
  • Brain fog: You may have difficulty concentrating or remembering things.
  • Dry mouth: Also known as "cottonmouth," this symptom can make your mouth and throat feel dry and uncomfortable [13].
  • Headaches: Some people may experience headaches after consuming cannabis.
  • Red eyes: This is a common side effect of cannabis use, and it can persist into the next day.

Causes of a Weed Hangover

The causes of a weed hangover stem from a complex interplay between the body's response to cannabis and the characteristics of the consumption itself. High doses or potent strains of marijuana can overwhelm the body's endocannabinoid system, leading to more pronounced after-effects.

Dehydration, often a side effect of cannabis use, can exacerbate hangover symptoms, as can the disruption of sleep architecture—even if users feel they've slept deeply. Additionally, the method of consumption, such as smoking versus edibles, can influence the onset and duration of hangover effects, with edibles sometimes leading to a more prolonged experience due to their extended digestion and absorption process.

Understanding these factors can help users navigate their experiences with cannabis more smoothly, minimizing the likelihood of a hangoverThe exact cause of a weed hangover is not fully understood, but several factors may contribute to its occurrence:

  • Amount consumed: Consuming large amounts of cannabis can increase the likelihood of experiencing a hangover.
  • Potency of the cannabis: High-THC strains of cannabis may lead to more severe hangovers.
  • Method of consumption: Smoking or vaping cannabis can lead to a hangover, while consuming edibles or tinctures may not.
  • Individual factors: Factors such as your age, sex, body weight, and overall health can influence how you react to cannabis.

Treating hangoverHow to Prevent a Weed Hangover

Preventing a weed hangover involves mindful consumption practices and self-awareness. Starting with lower doses, especially with unfamiliar strains or forms of cannabis, can help gauge your body's response and minimize overwhelming after-effects. Staying hydrated before, during, and after cannabis use is crucial, as it combats dehydration and supports overall bodily functions.

Ensuring quality sleep is also key; although cannabis might initially seem to aid sleep, it's important to time your consumption to avoid disrupting sleep cycles. Incorporating these strategies not only enhances the immediate experience but also mitigates the less desirable after-effects, making for a more enjoyable and sustainable relationship with cannabis. 

While it may not be possible to completely prevent a weed hangover, there are steps you can take to reduce your chances of experiencing one:

  • Moderate your consumption: Consuming smaller amounts of cannabis can help reduce the likelihood of a hangover.
  • Stay hydrated: Drinking plenty of water before, during, and after consuming cannabis can help prevent symptoms like dry mouth and headaches.
  • Choose lower-THC strains: Opting for strains of cannabis with lower levels of THC can help reduce the severity of a hangover.
  • Get plenty of rest: Ensuring you get a good night's sleep after consuming cannabis can help your body recover and reduce the severity of hangover symptoms.
Diagram: The Cannabis Consumption Cycle

How to Treat a Weed Hangover

Treating a weed hangover centers around gentle, restorative practices to realign the body and mind. Hydration is paramount; drinking plenty of water replenishes fluids and helps alleviate symptoms like dry mouth and headaches. Engaging in light, refreshing activities such as a leisurely walk or gentle yoga can invigorate the body and clear mental fog.

Nutritious, balanced meals can also restore energy levels and stabilize blood sugar. For those grappling with fatigue, a short nap or relaxation techniques can provide much-needed rest without disrupting the natural sleep cycle. Employing these strategies can effectively ease the discomfort of a weed hangover, guiding you back to a state of equilibrium and well-being. 

If you do experience a weed hangover, there are several things you can do to alleviate your symptoms:

  • Stay hydrated: Drinking plenty of water can help alleviate symptoms like dry mouth and headaches.
  • Eat a healthy meal: Consuming a balanced meal can help your body recover and can alleviate feelings of fatigue.
  • Rest: If possible, take it easy and allow your body time to recover.
  • Avoid consuming more cannabis: While it may be tempting to consume more cannabis to alleviate your symptoms, this can often make your hangover worse.

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The Role of Cannabis in Health and Wellness

Cannabis has been used for centuries for its medicinal properties, and recent research has begun to shed light on its potential benefits for a variety of health conditions [6]. From managing chronic pain to reducing anxiety and depression, cannabis can play a significant role in health and wellness.

However, like any substance, it's important to use cannabis responsibly and be aware of potential side effects, including the possibility of a weed hangover. By understanding what a weed hangover is and how to prevent and treat it, you can ensure that your cannabis use is a positive part of your overall health and wellness routine.


While weed hangovers can be an unpleasant side effect of cannabis use, understanding their causes, symptoms, and treatments can help individuals better manage their cannabis consumption.

As with any substance, moderation and responsible use are key to ensuring a positive experience. With the growing acceptance and legalization of cannabis, further research will undoubtedly provide even more insights into the effects of cannabis and how to best use it for health and wellness.

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DISCLAIMER: The information provided in this article is for informational purposes only and should not be construed as medical, financial, or legal advice. The use of cannabis and its derivatives may have risks and potential side effects, and individuals should always consult with a qualified healthcare professional before using cannabis or any other substances for medicinal purposes. This article does not endorse the use of cannabis or any other substances for recreational purposes. The author and publisher of this article are not responsible for any damages or losses that may result from the use of the information presented herein. Readers are advised to do their own research and exercise caution when making decisions related to cannabis or any other substances.

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