Understanding Migraines with a Geelong Chiropractor
Migraines are more than just severe headaches; they are a complex neurological condition that affects millions of people worldwide. Characterised by intense, throbbing pain, often on one side of the head, migraines can be debilitating and disruptive, significantly impacting daily life. While the exact cause of migraines remains unclear, understanding the condition, its symptoms, and potential triggers can help those affected better manage and potentially prevent these painful episodes.
In the article, our Geelong chiropractor, Luka, discusses what are migraines, potential causes and common triggers of migraine type headaches.
What is a Migraine?
A migraine is a neurological disorder marked by recurrent episodes of intense headache, usually accompanied by other symptoms such as nausea, vomiting, and sensitivity to light and sound. Migraines are typically categorised into two main types:
Migraine with Aura (15-20%): This type is preceded by sensory disturbances known as an aura. Auras can include visual disturbances (such as flashes of light, zigzag patterns, or blind spots), tingling or numbness in the face or extremities, and difficulty speaking. The aura typically occurs before the headache phase and lasts for about 20 to 60 minutes.
Migraine without Aura (80-85%): This type is more prevalent and occurs without any preceding aura. The headache phase begins without warning, often accompanied by nausea, vomiting, and heightened sensitivity to external stimuli (i.e. light, sound, smell etc).
Migraines can last anywhere from a few hours to several days and can range in severity from moderate to severe. The frequency of migraines can vary widely from person to person, with some experiencing them occasionally and others dealing with chronic migraines on a regular basis.
What Causes Migraines?
The precise cause of migraines is still not fully understood, but they are believed to result from a combination of genetic, environmental, and neurological factors. Several key theories and factors have been identified:
1. Genetic Predisposition
Migraines often run in families, it is suggested that 75% of migraine sufferers have a close relative that also experiences migraine headaches. Certain genes may make individuals more susceptible to migraines by affecting the way their brain processes pain and other stimuli. People with a family history of migraines are more likely to experience them themselves.
2. Brain Chemistry Imbalances
Migraines are thought to be linked to changes in brain chemistry, particularly involving neurotransmitters such as serotonin. Serotonin plays a crucial role in regulating pain and mood, and fluctuations in its levels can trigger migraine attacks. During a migraine, serotonin levels drop, causing the trigeminal nerve (a major pain pathway) to release neuropeptides that can lead to inflammation and pain.
3. Cerebral Blood Flow Changes
One theory suggests that migraines may be triggered by changes in blood flow within the brain. Initially, blood vessels may constrict (leading to reduced blood flow), and then they may dilate (leading to increased blood flow). This change in blood vessel diameter can cause the characteristic throbbing pain of a migraine.
4. Hyperexcitability of Brain Cells
Another theory involves the hyperexcitability of brain cells (or failure of cortical inhibition), particularly in the cortex. This hyperexcitability can lead to a wave of electrical activity spreading across the brain, known as cortical spreading depression (CSD). CSD is thought to be responsible for the aura experienced by some migraine sufferers and may trigger the pain phase by activating the trigeminal nerve.
Common Triggers of Migraines
While the underlying causes of migraines are complex, certain triggers are known to precipitate migraine attacks in certain individuals. These triggers can vary from person to person, but some of the most common include:
1. Neck and Face Pain Triggers
Muscles attached to the head and/or face have the potential to cause headache referrals, which in some cases if not appropriately managed, can progress into migraine type headaches.
2. Hormonal Changes
Hormonal fluctuations, particularly in women, are a significant trigger for migraines. Many women experience migraines around the time of their menstrual cycle, during pregnancy, or menopause. The drop in estrogen levels before menstruation is often linked to the onset of migraines.
3. Stress and Anxiety
Stress is a well-known trigger for migraines. Emotional stress, anxiety, and depression can all contribute to the onset of a migraine and can often precede an episode. Stress-related migraines often occur during or after periods of intense stress.
4. Dietary Factors
Certain foods and beverages are known to trigger migraines in some individuals. Common dietary triggers include:
Caffeine: Both excessive consumption and withdrawal from caffeine can trigger migraines.
Alcohol: Red wine and other alcoholic beverages are frequent triggers.
Aged Cheese: Contains tyramine, a compound linked to migraines.
Processed Foods: Foods containing additives like MSG, nitrates, or artificial sweeteners can trigger migraines.
Chocolate: Contains both caffeine and phenylethylamine, which may be migraine triggers.
Notable others: Gluten, dairy & nuts
5. Environmental Factors
Environmental factors, including changes in weather, bright lights, loud noises, and strong smells, can trigger migraines. Sensitivity to sensory stimuli is a hallmark of the condition.
6. Sleep Patterns
Both insufficient sleep and excessive sleep can trigger migraines. Maintaining a consistent sleep schedule is important for individuals prone to migraines.
7. Physical Exertion
Intense physical activity, particularly when the body is not accustomed to it, can trigger migraines in some people. This is known as exertional migraine.
Conclusion
Migraines are a complex neurological condition with a variety of potential causes and triggers. While the exact mechanisms behind migraines are still being studied, it’s clear that a combination of genetic, biochemical, and environmental factors play a role. By understanding the specific triggers and underlying causes of migraines, individuals can take steps to manage their condition and reduce the frequency and severity of attacks. If you experience migraines, it’s important to work with a healthcare provider to develop a personalised treatment plan that addresses your unique needs and triggers.
Feel free to reach out to us on (03) 4250 9865, email info@empowered-health.com.au or feel free to visit us at 27 Melbourne Rd, Drumcondra VIC should you have any questions.