marijuana twitching

What Are The Cannabis Shakes And Why Do They Happen?

Ever started shaking uncontrollably after smoking a large amount of weed? Well, you’re not alone. The “cannabis shakes” have numerous causes and are most likely nothing to worry about.


Breaking down the cannabis shakes: what they are, why they happen, and how to deal with them.

So, you’re relaxing, enjoying a smoking session with friends, when suddenly your leg starts to twitch, then your shoulder, and your eyelid. You start to freak out and the tremors get worse. Panicked, you wonder what’s happening to you. Don’t worry, it’s probably just the cannabis shakes (and you should be fine in a few minutes).

What are the cannabis shakes?

“The shakes” are involuntary muscle twitches and tremors. This phenomenon can sometimes occur after consuming weed. If you typically associate the shakes with alcohol withdrawal or more serious health conditions, don’t stress. When it comes to cannabis, the shakes are generally no big deal.

Cannabis has a very good safety profile [1] . While no formal studies have been conducted on cannabis shakes, a plethora of anecdotal reports tell us they’re relatively common and typically harmless. Like other symptoms of consuming too much weed, such as increased heart rate, sweating, and nausea, they tend to subside as quickly as they began.

Why do you shake after smoking cannabis?

So, what causes the cannabis shakes? Are they just a side effect of getting too high for your own good? There are actually a variety of factors that could contribute to the shakes, including:

• Cold environment
• Over-stimulation
• Anxiety
• Too much THC

Let’s break it down:

Cold environment

You might be shaking or shivering because you’re cold. Cannabis actually lowers your body temperature [2] —an effect known as “THC-induced hypothermia”. Before you start imagining yourself freezing to death as your couch morphs into a snow-covered mountain, take a beat. THC-induced hypothermia only causes a slight drop in basal body temperature. You might shiver and shake what your mama gave you, but it isn’t dangerous or life-threatening.


In a lot of places, it’s common to roll a little tobacco into your joint. Nicotine is a stimulant: it excites the nervous system and boosts dopamine levels. While this boost is the reason a lot of people like to add a pinch of tobacco to their weed, it can cause twitching and anxiety in higher doses. If you’ve been enjoying this combo and find yourself with a case of the shakes, the problem could actually be the tobacco, not the cannabis. Likewise, if you’ve been drinking a lot of coffee, tea, or soda, caffeine could be contributing to your tremors.


It’s well-known that weed can cause acute anxiety and paranoia, and some people are more susceptible to it than others. If you’re one of those people, or if you just caught a bad break, nervousness could be at the root of your shakes. Of course, your body acting in ways that feel out of your control can amplify anxiety. If you get the shakes, try not to panic. Instead, keep calm and carry on.

Too much THC

To go back to the original question: Are the shakes just a side effect of getting way too high? Often, the answer is yes. The cannabis shakes are commonly due to a mild THC overdose. Don’t let the word “overdose” freak you out too much, especially if you’re young and healthy. We’ve all flown too close to the sun at some point, but nobody has died from overdosing on cannabis alone [3] . Freaked out and embarrassed yourself in front of all your friends? That’s another story.

What can you do if you get the cannabis shakes?

To recap, the cannabis shakes are not life-threatening, but they can leave you feeling alarmed and uncomfortable. While time is a key factor, waiting for them to subside on their own isn’t your only option. Here are some quick harm-reduction tips to help combat the shakes:

• Adjust your environment
• Move around, distract yourself, breathe
• Stay away from stimulants
• Consider switching strains
• Try some CBD

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Adjust your environment

Regardless of the precise cause of your shakes, sitting there and panicking or focusing on how uncomfortable you feel won’t help. Instead, take control of the things you can.

Environment plays a huge role in our emotional state, especially when psychoactive substances are involved. Feeling comfortable, warm, and safe is key. That could mean going to a different room or a more relaxing place. It could mean leaving an overwhelming social situation. It could be as simple as adjusting the lighting and putting on your favourite tunes. And, if your shakes are actually shivers, crank the heat. Cosy blankets are a chilly stoner’s best friend.

Move around, distract yourself, breathe

If you feel yourself starting to panic, switch gears from straight up shaking to shaking it off. Get up and move around. Distract yourself with a simple task, even if it’s counting steps. Take slow, deep breaths to calm down, or try some other strategies to calm anxiety. Movement and breathing help you recenter yourself in your body and focus on something other than your anxiety. Walking or moving around also gets you to stretch and warm up your tense, twitching muscles.

Stay away from stimulants

If you’ve been rolling your joints with tobacco or drinking caffeine, it’s time to try less-stimulating alternatives. Switch to non-caffeinated beverages and limit the amount of tobacco in your joints. If using pure cannabis feels too basic, spice it up with something different. A number of herbs make great tobacco alternatives. Just avoid anything with strong stimulant properties. You don’t want to end up back where you started, with the shakes (version 2.0).

Switch strains

A few of the factors that cause the shakes—anxiety, over-stimulation, too much THC—could boil down to the strain you’re smoking. There are hundreds of cannabis strains out there, each with its own unique mix of properties. In general, sativa-dominant strains tend to be more stimulating (and possibly anxiety-inducing) than indica-dominant strains.

Many people love the boost they get from a good sativa. But, if you’re prone to anxiety or paranoia, look for indica strains that tend towards relaxation. Of course, the indica/sativa split isn’t a hard rule. The best choice is an informed one, so don’t be afraid to check strain reviews from other users or ask your budtender for a recommendation.

Try some CBD

It’s also possible that the THC content of your strain is simply too high. Instead, look for a strain that’s high in CBD (cannabidiol). CBD isn’t psychoactive, and scientific studies [4] have found that it mitigates some of the side-effects of THC. Research also suggests it has potential as an anxiolytic, meaning it may help to combat anxiety. Depending on your preference, choose a strain with a 1:1 ratio of THC and CBD, or one that’s higher in CBD and lower in THC. These popular high-CBD strains are an excellent starting point.

What if it’s too late to switch strains and you’re already high? If you find yourself caught in the midst of those twitches and tremors, CBD could still help. You probably don’t want to add more THC to your system, so choose CBD oil or isolates with quick delivery mechanisms. A few drops of high-quality CBD oil or tincture under the tongue is your best bet.

How long do the cannabis shakes last?

Luckily, the cannabis shakes usually don’t last too long. Of course, this depends on a few factors, including the amount of cannabis you took (and how you took it). If you vaped, smoked a joint or indulged in one too many bong rips, you should feel better within 15–20 minutes. If you overdid it on the edibles, you might be in for a longer haul.

If you experience truly alarming symptoms, have underlying health conditions, or suspect something more is going on, check with your doctor or a cannabis-informed healthcare provider. Beyond that, a few key adjustments and a little bit of patience (or CBD) should do the trick.

Twitches and tremors after smoking weed are generally harmless. Here's what causes the cannabis shakes and how to combat them.

What Can Cannabis Do for Patients with ALS?

Part of a group of rare degenerative neurological conditions, amyotrophic lateral sclerosis (ALS) causes muscle stiffness and cramping that can be extreme. Difficulty swallowing, slurred speech, and muscle twitching are also markers of this progressive disease, often named for New York Yankees baseball player Lou Gehrig, who infamously had his career cut short in 1939 following his diagnosis. The condition also is known as motor neuron disease (MND) for the way it kills neurons that control voluntary muscle movement

Fifteen people each day are diagnosed with the incurable disease, according to the ALS Association . Treatments include prescription medications as well as holistic options, such as speech therapy, breathing exercises, and medical marijuana.

The prognosis for ALS is poor and few patients live beyond five years with the disease, although there are notable exceptions. Physicist Stephen Hawking lived for more than half a century with ALS, but his case was an anomaly.

What has current research told us about how cannabis may be able to improve the quality, or even the quantity, of life for patients with ALS?

Research Overview

Research has been encouraging in the treatment of ALS with cannabis with a number of studies and clinical trials leading the way.

(Photo via Andrei_R/Shutterstock)

The Studies

A 2010 study published in the American Journal of Hospice and Palliative Care found that cannabis was effective in addressing issues associated with ALS. Researchers described the powerful antioxidative, anti-inflammatory, analgesic, appetite-stimulating, muscle relaxing, and neuroprotective properties of cannabis. All of these properties could pertain to symptom management of ALS, according to the authors of the study. In addition, delayed onset and slower disease progression were observed in mice with ALS. Based on all these findings, researchers made a strong recommendation for clinical trials of cannabis to treat ALS.

In 2016, a literature review published in the journal Neural Regeneration Research expanded on the claims of the 2010 study. The authors of the review concluded that “there is a valid rationale to propose the use of cannabinoid compounds in the pharmacological management of ALS patients. Cannabinoids indeed are able to delay ALS progression and prolong survival.” However, they did note the need for studies performed on humans and targeted clinical trials.

One such clinical trial is presently under way at the Gold Coast Hospital and Health Service in Queensland, Australia. The trial involves 30 participants with ALS or MND. The patients will alternately be treated with CBD oil or a placebo and the study is estimated to wrap up in January 2021.

These research studies and trials have paved the way for some ALS patients to integrate cannabis into their therapeutic treatments.

Patient Perspectives

Just before his 40th birthday, Sam Jundef of Marlboro, New Jersey, was diagnosed with ALS. In the four years since his diagnosis, the once-athletic father of two cannot move, speak, or breathe without assistance. Sam has gained some relief from vaping marijuana, but the process is arduous and involves disconnecting his ventilator.

Because of these challenges, Sam and his wife, Jessica, have been fighting for access to transdermal medical marijuana patches in New Jersey. Jessica lamented to New York City’s WPIX-TV in 2018 that, “He’s 43 years old. He can’t walk. He can’t talk. He can’t eat. He can’t breathe on his own and, like, why can’t we provide things for him that are going to make his life easier? Why should my husband, who has ALS, who’s dying, whose every day is precious, why should he have to suffer a minute?”

There may be good reason why ALS patients and their loved ones are battling for legal access to cannabis medicine. Cathy Jordan, a retired resident of Parrish, Florida, has been living with ALS since 1986. With an average survival rate for ALS patients falling between two and five years, Cathy’s longevity is exceptional. She credits medical marijuana with stopping ALS in its tracks. Cathy chronicled her journey in Florida Food & Farm in 2017: “I turned 36 on New Year’s Day 1986. But during that first week, I knew I had ALS. I was hoping beyond hope I didn’t have ALS. I started choking on my own saliva. I didn’t want to end my life like that.”

Then, in 1989, Jordan turned to medical marijuana and her life changed: “I smoked my first Myakka Gold. I’m convinced that whatever was in that pot stopped my disease.”

Jordan’s survival story is an unusual one but may provide hope to some ALS patients who have tried other treatments that have failed. What do the experts have to say about cannabis as a treatment for ALS?

(Photo via bubutu/Shuttershock)

What the Experts Say

Dr. Dale J. Lange, Chairman of Neurology, Neurologist-in-Chief, and Professor of Neurology at Weill Medical College of Cornell University in New York, has initiated a clinical trial to test the effects of cannabis on ALS. Lange told HuffPost in 2015: “I am very interested in looking into the effects of high CBD/low THC in patients with ALS and UMN predominant motor system disease.”

That eminent professionals in the field such as Lange are probing the possibilities is a hopeful sign, but there is much more work to be done to ensure legal access for patients in need.

The Bottom Line

A burgeoning body of evidence indicates that cannabis could work as part of a comprehensive treatment plan for patients with ALS.

Featured Image illustrated by Allena Braithwaite/Weedmaps

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