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Migraines can turn an otherwise normal day into a complete write-off — and they’re notoriously hard to treat.
CBD may help by regulating serotonin release, fighting inflammation, controlling vascular spasm, and more.
In this article, we discuss theories surrounding migraines and how new research suggesting CBD may be used to prevent and possibly treat symptoms.
CBD oil offers many benefits.
But can it stop migraine headaches?
Cannabis has been used for thousands of years by cultures all around the world. Some of their uses were similar, others unique to specific tribes or communities.
One of the most universal uses of the plant is treating headaches.
Indeed, the cannabis plant and its cannabinoids offer powerful therapeutic benefits towards conditions which are difficult to treat, such as migraine headaches.
How is it effective?
Cannabinoids don’t have just one action — they have several different ways of tackling the same problem.
These different actions of the plant all work together to calm the nervous system, stabilize inflammatory processes, and regulate pain transmission.
When you add all these elements together, cannabinoids can offer some incredible anti-migraine benefits.
To get these benefits, it’s important to take CBD oil over long periods and preferably use a high-grade CBD oil.
Migraines are a type of severe, recurring headache accompanied by at least one, or various, physical symptoms such as nausea, vomiting, and sensitivity to light or sound.
In many cases, these headaches only affect one side of the head and cause throbbing pain. They may also be agitated by movement, and are of enough intensity to interfere with daily function.
Migraines typically last 4-8 hours (typically all day), but can last as long as three days (72 hours).
Along with headaches, migraine sufferers also commonly experience other symptoms such as nausea, sensitivity to light, sound, and smells, as well as visual disturbances.
Migraines tend to have distinct phases. These aren’t always present, and they can vary a lot from one episode to the next.
This phase can begin either days, hours, or minutes before a migraine attack — it’s a common warning sign that a migraine is soon to ensue.
It may involve a wide variety of symptoms that appear before the actual headache. People with chronic migraines tend to learn what their triggers and early symptoms usually are. These feelings should prompt people to take their preventive medications.
During the aura phase, people experience strange changes in their vision and/or perception. It can change the way colors look, how we interpret smell and taste and can alter our mood dramatically.
The aura phase typically lasts about 1 to 2 hours.
For most people who experience regular migraines, this is the most reliable indication that they are about to have an episode. Some people can even estimate how severe their migraine will be from the severity of the aura phase.
This is the main phase we think of when we talk about migraines.
This phase can vary a lot in severity and is usually very unpredictable, even in people who have regular episodes of migraine headaches.
In most cases, migraine headaches only affect one side of the head but can affect both sides equally as well. Some people feel the pain at the front of the head, others at the back, and some in the center.
However, if you suddenly experience the worst headache of your life that feels like a clap of thunder all over your head, or have had a migraine for over 72 hours, please go to your nearest emergency department right away.
The postdrome phase happens after a migraine has settled.
Many people who experience these say they resemble a hangover but can last for several days. Some will even feel pressure or low-grade pain in the places where most of their migraine affected.
It can leave people feeling fatigued and depressed for a few days after the event.
In some cases, people may find that during this phase they feel unusually refreshed and clear-headed. Some reports even suggest a euphoric state for as long as a week after the event.
Migraine headaches tend to be very elusive to researchers. They’re hard to predict and even harder to trace back to any particular cause. Migraine headaches tend to be very elusive, however, researchers today have a better understanding of the basis of migraines.
From stress and hormone levels to allergies and chemical exposure — these are all considered factors and potential causes for migraines but can vary a lot from one person to the next.
One of the main factors new research is investigating is hormone levels.
This is because migraines are more common in young boys just before puberty and 2 or 3 times more likely in women than men. Additionally, migraines tend to decrease during pregnancy and menopause.
All of these factors can be traced back to fluctuations in hormone levels, though scientists still don’t know exactly how this works, but there are several strong theories as we’ve listed below.
There are several prominent theories at play  which are most likely the actual causes of hormone-related migraines including:
Let’s cover some of the main ones now and how they’re correlated with CBD.
Serotonin is a neurotransmitter and has many roles in the body. It regulates much of our emotion, sexual function, hormone balance, and memory.
One of the leading theories for the cause of migraines is an excessive release of serotonin from platelet triggers.
What does this mean?
A platelet is a type of cell that floats around in the bloodstream and plays an important role in the way we monitor and control coagulation and inflammation in the body — among other things. One of the ways we do this is by releasing small amounts of serotonin.
In some cases, these platelets can overreact to the situation and dump large amounts of serotonin into the bloodstream, causing blood vessels to widen and lose pressure. This essentially causes regions located near the area to go into shock .
When this happens in the blood vessels of the brain, it can cause the widening of blood vessels and release of inflammatory signals causing symptoms such as severe pain, disorientation, and hypersensitivity to stimuli like sight and smell.
What this means: If we can stop the excessive release of serotonin from the platelet cells, we may be able to stop or prevent migraine headaches.
We need inflammation to stay healthy.
It’s our bodies’ way to trap and destroy invading bacteria and viruses. Inflammation promotes healing and prevents further damage to the body by causing pain and redness which reminds us to be careful with that part of the body.
Unfortunately, inflammation can go out of control causing many different health problems for the body.
One such problem is migraine headaches.
A protein found inside the cells, known as nuclear factor kappa B (NF-kB for short) is responsible for regulating the creation of inflammatory compounds in the cells.
NF-kB is a major driving factor behind migraine headaches. When this protein goes out of balance, it can cause an overabundance of inflammatory messengers called cytokines (IL-1B, IL-6, and TNF-a). These messengers then trigger a wave of inflammation and pain in the nervous system. .
Since these messengers are short-lived, the problem usually subsides within several hours, causing the migraine to typically last all day, and before gradually disappearing.
This cause is especially common in people who tend to be over-reactive to foods and other allergens. People who suffer from asthma and hay fever are also at a higher risk for migraines caused by this effect.
What this means: If we can stop the overactivation of NF-kB, we may be able to prevent migraines.
All of our arteries have a thin layer of muscle lining them.
These muscles are designed to expand and contract to control our blood pressure and to allow us to shunt blood into vital organs such as the brain when need be.
A good example of when do this is when we’re out in the cold.
To preserve the core body temperature, the blood vessels in our hands, feet, and nose will tighten to slow blood flow in the area. This helps to keep the warm blood closer to the internal organs.
There are other reasons for shunting blood as well, such as after a meal when we need more blood flow to the digestive organs or after a traumatic injury where we need to bring fresh oxygen and nutrients to the damaged site.
This system is especially sensitive in the delicate regions of the brain.
When the trigeminal ganglion is activated by the cortical spreading depression, it releases pro-inflammatory molecules onto] the muscles controlling its blood vessels that can widen and spasm, causing severe migraine headaches.
What this means: If we can stop excessive vascular spasms among the arteries feeding the brain, we can stop migraines.
Treating migraines focuses on both prevention as well as treatment, but still involves a lot of trial and error, as well as time due to everyone’s unique chemistry.
This is because the medications used to address any of the three causes of migraines are different, and it takes up to 6 weeks for a medication to build up enough to have any effect.
Most of the drugs for migraines have about a >50% chance of working after several weeks. If one medication doesn’t work, doctors will usually move on to another one. If your migraines happen 15 or more days per month, then scalp botox injections are also an effective new, insurance-covered prevention option.
Most people who suffer migraines will use [their preventive medications and prescriptions. However, milder migraine sufferers may use] over the counter pain medications such as Excedrin, Tylenol, Ibuprofen, and Aspirin, however, this only help curb the intensity of mild episodes. They do little for actually clearing up a migraine and are rarely strong enough to completely alleviate symptoms. Most often they’re used in conjunction with routine prescription medication.
Most of these medications come with a long list of negative side effects such as ulcers, heart vessel spasm, kidney damage. Unfortunately for some people, there is only minimal relief available from migraine headaches.
For this reason, many people who suffer recurrent migraines are turning for help from a different source of medicine.
There are obvious benefits to conventional medicine over plant-based medicine. However, this is not the case for migraine headaches.
There are many herbs with well-established benefits of treating and preventing migraine headaches.
Feverfew, for example, is a small plant in the daisy family that offers direct improvements on all three processes thought to be causing migraine headaches .
Another plant that has shown significant potential in addressing the causes and symptoms of migraine headaches is the cannabis plant.
Plants such as these often contain dozens, if not hundreds of different chemicals. Unlike pharmaceuticals, this makes it difficult to characterize each compound’s precise effects, giving them the added benefit of providing what we could call a multifaceted approach to treatment.
This means that the series of chemicals contained in cannabis may possibly offer similar benefits for a medical condition, but do it through different mechanisms.
For example, the cannabis plant contains as many as 80 different cannabinoids and well over 100 different terpenes in its leaves and resin.
Some of these cannabinoids help to stop arterial spasms, others stabilize immune cells and more.
By providing multiple therapeutic avenues for a particular condition, and by sharing many common underlying mechanisms, cannabis could potentially stand a better chance of fixing the problem.
This is a common technique oncologists use to fight cancer. By using a cocktail of chemotherapeutic drugs, each with slightly different modes of action, they get a far greater chance of choosing the right one and curing their patient’s cancer.
Marijuana has been used for treating headaches since at least the 17th century.
There are several ways it’s able to achieve this:
We’ve long known about the ability for cannabis to inhibit the release of serotonin from the platelets . Unfortunately, we don’t have any more recent studies confirming this effect.
This effect could help prevent and treat migraines caused by excessive serotonin release from platelets, and further research should investigate this possibility.
Interestingly, this same effect on serotonin release is also considered one of the primary ways CBD can be used to treat nausea and vomiting, which are also common symptoms associated with migraine headaches.
One of the ways marijuana was used in the past to treat headaches, was by wrapping its wet leaves around the head and neck for several hours at a time . This practice, mainly documented among the Sumerians, is most likely a direct result of these anti-inflammatory effects.
Modern treatments of migraines often involve anti-inflammatories such as Aspirin or Tylenol.
CBD exerts its effects through a number of different inflammatory pathways including adenosine , as well as 2 of the main inflammatory compounds linked with NF-kB , which is considered one of the primary potential causes for migraine headaches.
The trigeminal nerve is predominantly responsible for causing the vascular system in the brain to spasm out of control — especially with cluster headaches and migraines.
One of the main reasons this happens is hyperactivity involving the N-methyl-D-aspartate (NMDA)/glutamate system. This system is responsible for causing many of the stimulating activities in the brain.
It’s like the gas pedal in the car. Once activated, RPM increases and the car goes faster.
In the brain, it’s very similar: when NMDA is active, your neurons fire faster and faster.
Much like a car, the brain also has a brake pedal. We call this Gamma-aminobutyric acid – or GABA. It slows us down and helps us relax, directly opposing the effects of NMDA.
In some cases, NMDA activity can go out of control, causing the trigeminal nerve controlling the vascular system in the brain to go haywire and spasm. This results in severe migraine headaches, which can last hours on end.
CBD slows this process down by stepping on the brake pedal (GABA) , similar to Valproic Acid, slowing everything down, and stopping the arterial system spasm.
One of CBD’s main actions is blocking the transmission of pain.
CBD is a master modulator. This means that it doesn’t work on any single pathway, forcing it in one direction or another.
Instead, it boosts the body’s ability to regulate itself.
It’s like giving a construction crew access to better tools. They do the same job as before, only better.
Of course, this is an oversimplification of what’s going on, but it’s important to be able to understand how CBD blocks pain.
Pain is useful to the body because it warns us when something isn’t right. However, it can work against us when the pain becomes so severe it’s debilitating.
For this reason, the body has a number of different processes that are meant to regulate how much pain we actually perceive. Like playing with the volume control on your speaker system, they turn up the sensation of pain when we need to feel more of it and down when it starts to negatively affect us.
With migraine headaches, the pain volume is cranked all the way up.
CBD helps promote the processes that are meant to control this by telling some of the responsible receptors (such as the TRPV1 and opioid receptors) to step up and turn the volume back down to an appropriate level.
Interestingly, there are 10 times as many CB1 receptors as there are mu-opioid receptors in our central nervous system and pain pathways [16,17].
Now that we’ve gone over in detail how migraines work, and how CBD and other cannabinoids may be used to prevent or treat them, let’s talk about the proper way to use CBD oil effectively.
Dosing CBD can be a challenge, especially since it tends to react differently in everybody.
For some people, a small dose is all that’s needed to produce effects, while others need much larger doses. This can make dosing difficult at first, but once you understand how it works in your body, it’s very straightforward.
There are some general CBD dosage guidelines you can follow for figuring out the right dose to start with, and how to dial it effectively.
With that said, it’s important to note that many people who are prone to migraines tend to be more sensitive to chemicals. For this reason, we recommend starting slightly below the lowest recommended dosage for your weight and build up slowly from there.
The key to using CBD oil effectively for migraines is to use it regularly over long periods of time, in addition to your routine prescriptions.
By taking small doses of the oil throughout the day – usually once in the morning and once in the evening — you’ll be able to improve your body’s natural ability to maintain neurovascular balance and avoid spiraling out of control into a debilitating migraine attack.
Many people taking CBD oil for this will increase the dose when they feel a migraine attack coming on to stop it in its tracks or reduce its overall severity.
For example, a migraine sufferer might take 5 mg worth of CBD in the morning and 5 mg in the evenings most days. When they feel a migraine coming on, they take another 5 mg every 2 or 3 hours until it subsides. However, you should also keep taking your prescription medications for prevention and treatment.
Migraines are many things— common, debilitating, and mysterious.
Doctors and neuroscientists still don’t have a definitive explanation for what causes them or how to stop them.
There are, however, a lot of promising theories that we can start with when looking for treatments for the condition. From what is known, there are common pathways that CBD may also act upon to help.
CBD oil has recently been on the rise as a new and potentially effective migraine treatment and prevention method. It works through several different yet related pathways to resist the processes driving migraine headaches.
It’s likely that we’ll see this use of CBD and CBD oil become a standard adjunctive treatment for the condition in the next few years as more research sheds light on the incredible benefits of this humble plant extract.