Migraine Explained: Symptoms, Triggers, and Evidence-Based Ways to Find Relief

Migraine Is More Than Just a Headache

Imagine waking up with a dull ache behind one eye. Over the next hour, the pain intensifies. Sunlight becomes unbearable, ordinary sounds feel overwhelming, and even the thought of eating makes you nauseated. Your calendar is full, but your brain has other plans.

For millions of people, this is what living with migraine can look like.

Migraine is a neurological disease, not simply a severe headache. It can affect how the brain processes pain and sensory information, and its symptoms may interfere with work, relationships, sleep, and everyday activities.

The good news? Although there is currently no cure for migraine, effective treatments and prevention strategies can help many people reduce the frequency and severity of attacks.

In this guide, we explore what migraine is, why it happens, how to recognize its symptoms, and what you can do to take greater control of your migraine management.

What Is Migraine?

Migraine is a neurological condition characterized by recurrent attacks that can involve head pain and a range of other symptoms. It affects people differently: some experience intense, throbbing headaches, while others experience prominent dizziness, nausea, visual disturbances, or sensory sensitivity.

Migraine is also common. The World Health Organization identifies headache disorders as a major source of disability worldwide, with migraine contributing substantially to the burden.

Unlike a typical tension-type headache, a migraine attack can make routine physical activity difficult and may last anywhere from several hours to a few days.

Common migraine symptoms include:

Moderate to severe head pain, often throbbing or pulsating
Pain on one or both sides of the head
Nausea, sometimes with vomiting
Sensitivity to light, sound, or smells
Worsening pain with ordinary physical activity
Difficulty concentrating, fatigue, or dizziness

Not everyone experiences all these symptoms. In fact, migraine can sometimes occur without significant head pain.

For more information, visit the National Institute of Neurological Disorders and Stroke's migraine overview.

What Happens in the Brain During a Migraine Attack?

For many years, migraine was explained primarily as a problem involving changes in blood vessel diameter. We now understand that the condition is more complex.

Migraine involves changes in the activity of brain networks and pain-processing pathways. One important player is the trigeminal system, a network of nerves involved in sensation from the face and head.

A signaling molecule called calcitonin gene-related peptide (CGRP) also plays an important role in migraine. CGRP is involved in transmitting pain signals and can contribute to the biological processes underlying migraine attacks.

This discovery has helped scientists develop newer migraine-specific treatments, including medications that target CGRP or its receptor.

Migraine also has a substantial genetic component. Having a close family member with migraine can increase your likelihood of experiencing it, although genes are only part of the picture.

The precise mechanisms behind migraine are still being investigated. What is clear is that migraine is a genuine neurological disorder—not a sign of weakness, a lack of resilience, or simply an inability to manage stress.

The Four Phases of a Migraine Attack

A migraine attack may involve several phases. Not everyone experiences all four, and symptoms can vary between attacks.

1. Prodrome: The Early Warning Signs

Hours or even a day or two before head pain begins, some people notice subtle changes.

These can include:

Unusual tiredness or frequent yawning
Food cravings
Increased thirst or urination
Neck stiffness
Changes in mood
Difficulty concentrating

These symptoms can be easy to overlook. However, recognizing your personal early warning signs may help you prepare for an attack and follow your treatment plan promptly.

2. Aura: Temporary Neurological Symptoms

Some people experience migraine with aura. Aura commonly involves visual disturbances, such as flashing lights, zigzag lines, or blind spots. Other symptoms may include tingling or temporary difficulty finding words.

Aura symptoms typically develop gradually and are reversible. They commonly last between 5 and 60 minutes.

Important: New or sudden neurological symptoms should not automatically be attributed to migraine. Stroke and other serious conditions can cause similar symptoms and require urgent assessment.

3. Headache: The Painful Phase

During this phase, pain may become moderate or severe and worsen with movement. Nausea, vomiting, and sensitivity to light and sound can make everyday activities difficult.

An untreated migraine attack commonly lasts between 4 and 72 hours, although duration varies.

Some people have migraine attacks with little or no headache pain, while others experience substantial pain and disability.

4. Postdrome: The Migraine Hangover

Even after the head pain subsides, you may not feel back to normal.

The postdrome phase can involve fatigue, brain fog, dizziness, and difficulty concentrating. Some people describe feeling drained, as though they have just recovered from an illness.

Understanding these phases can help explain why migraine affects more than the hours spent experiencing head pain.

What Triggers Migraine Attacks?

One of the most frustrating aspects of migraine is that attacks can seem unpredictable. You may have a perfectly ordinary day and still develop a debilitating headache.

Migraine triggers vary from person to person. Commonly reported factors include:

Sleep changes: Sleeping too little, sleeping longer than usual, or changing your sleep schedule can contribute to attacks.

Stress and changes in stress: Emotional stress can be a trigger, but some people experience migraine when stress subsides—for example, at the beginning of a weekend or vacation.

Skipped meals: Going too long without eating or experiencing fluctuations in meal timing may increase susceptibility to attacks.

Dehydration: Inadequate fluid intake can contribute to headaches and may trigger migraine in some people.

Hormonal fluctuations: Changes in estrogen levels can influence migraine, helping explain why some people experience attacks around menstruation.

Weather and environmental changes: Bright sunlight, heat, changes in barometric pressure, strong smells, and loud noises may contribute to attacks in susceptible individuals.

Caffeine and alcohol: Changes in caffeine consumption, excessive caffeine, caffeine withdrawal, and alcohol can be relevant for some people.

Do Certain Foods Cause Migraine?

Chocolate, aged cheese, processed meats, and other foods are frequently described as migraine triggers. However, evidence does not support treating all these foods as universal triggers.

Food cravings can also occur during the early phase of a migraine attack. This means that a food eaten shortly before a headache is not necessarily what caused it.

Rather than eliminating numerous foods from your diet, consider keeping a headache diary to look for consistent patterns. Avoiding unnecessary dietary restrictions can make migraine management more practical and sustainable.

The key takeaway: Focus on your own patterns rather than trying to avoid every possible trigger.

For additional guidance, see the American Migraine Foundation's migraine symptom and trigger information.

How Can You Prevent Migraine Attacks?

Migraine prevention is not about achieving a perfectly controlled lifestyle. It is about identifying realistic changes that may reduce your susceptibility to attacks.

1. Keep a Consistent Sleep Schedule

Try to go to bed and wake up at approximately the same time each day, including weekends. Aim for sufficient, restorative sleep and discuss persistent insomnia or symptoms of sleep apnea with a healthcare professional.

2. Eat Regularly and Stay Hydrated

Avoid routinely skipping meals. Maintain regular eating patterns and drink fluids throughout the day.

You do not necessarily need a special migraine diet. A balanced, sustainable eating pattern is generally a better starting point than eliminating multiple food groups.

3. Exercise Consistently

Regular aerobic exercise may help reduce migraine frequency for some people. Start gradually and choose an activity you enjoy.

If vigorous exercise consistently provokes headaches, consider gentler activity while discussing the pattern with your clinician.

4. Manage Stress Without Blaming Yourself

Relaxation techniques, mindfulness, cognitive behavioral therapy, and biofeedback may help some people manage migraine.

Stress management is not a substitute for medical treatment, and experiencing migraine does not mean you have failed to cope with stress.

5. Track Your Headaches

A headache diary can help you and your healthcare professional identify patterns and evaluate whether treatment is working.

Consider recording:

The date and duration of each attack
Headache severity and associated symptoms
Menstrual timing, where relevant
Sleep, meals, caffeine, and possible triggers
Medications taken and how well they worked
Missed work, disrupted activities, or other functional effects

Tracking headache days is particularly useful when deciding whether preventive treatment may be appropriate.

Migraine Treatment: What Are Your Options?

Migraine treatment generally falls into two categories: acute treatment, which aims to relieve an attack that has already started, and preventive treatment, which aims to reduce future attacks.

The right approach depends on your symptoms, attack frequency, medical history, other medications, and personal treatment goals.

Acute Treatment: Stopping an Attack

Depending on the individual, acute treatment may include:

Over-the-counter pain relievers: Such as ibuprofen or acetaminophen, when appropriate.
Triptans: Prescription medications specifically used to treat migraine attacks.
Gepants: CGRP-targeting medications that can be used for acute treatment in appropriate patients.
Anti-nausea medications: Helpful for people whose attacks involve significant nausea or vomiting.

Treatment often works best when taken early in an attack, according to the medication's instructions and your clinician's advice.

If nausea or vomiting makes oral medication difficult to use, alternative formulations may be worth discussing with your healthcare professional.

Frequent use of acute headache medications can contribute to medication-overuse headache. If you regularly need rescue medication, ask your clinician about a treatment plan rather than simply increasing how often you take it.

Preventive Treatment: Reducing Future Attacks

Preventive treatment may be appropriate if migraine attacks are frequent, disabling, prolonged, or difficult to manage with acute medications alone.

Options include:

Oral preventive medications: Certain beta-blockers, antidepressants, and anti-seizure medications can help prevent migraine.
CGRP-targeting treatments: Some monoclonal antibodies and oral medications target the CGRP pathway.
Botulinum toxin injections: Botox is an established preventive option for chronic migraine in eligible patients.
Behavioral and lifestyle approaches: Including regular exercise, sleep management, and selected psychological therapies.

A treatment that works well for one person may not work for another. Finding an effective preventive strategy sometimes requires trying more than one option under medical supervision.

For an overview of available approaches, visit Migraine Canada.

Can Supplements Help Prevent Migraine?

Some vitamins and minerals have been studied as possible migraine-prevention strategies. Evidence and recommendations vary by supplement, dose, and individual circumstances.

Magnesium

Magnesium plays important roles in nerve function and other physiological processes. Evidence supports magnesium supplementation for migraine prevention. Magnesium supplements can cause diarrhea and drowsiness.

Riboflavin (Vitamin B2)

Riboflavin has been studied for migraine prevention, and some clinical evidence suggests that it may help reduce attack frequency in certain people.

It is not an immediate treatment for a migraine attack, and benefits, if any, should be evaluated over time.

Coenzyme Q10

Coenzyme Q10 is involved in cellular energy production. Some studies suggest a potential role in migraine prevention.

Other studied ingredients include vitamin D3, melatonin, butterbur, and feverfew.

For more information on nutraceuticals, visit the American Headache Society's Patient Education Kit for Migraine.

What About Combination Migraine Supplements?

Some people prefer a supplement that combines several ingredients rather than taking multiple separate products.

When evaluating a combination supplement, consider the specific ingredients, doses, quality standards, potential interactions, and whether there is evidence supporting their use for migraine prevention.

Natural does not automatically mean safe or effective. Supplements can interact with medications, and certain ingredients may not be appropriate during pregnancy or breastfeeding.

Supplements should be considered one part of an individualized migraine management plan—not a replacement for appropriate medical care.

MigraineMD is an all-in-one natural supplement option that only contains evidence-based ingredients at evidence-based doses, and leaves out anything with serious side effects.

When Should You See a Doctor About Headaches?

Recurring headaches deserve attention, especially if they interfere with work, family life, sleep, or other activities.

Consider arranging a medical assessment if:

Your headaches are becoming more frequent or severe.
You regularly miss work or other activities because of migraine.
Your current medication is not providing adequate relief.
You frequently need acute headache medication.
You experience new or changing symptoms.
You are unsure whether your headaches are actually migraine.

Seek emergency medical care for a sudden, extremely severe headache, new weakness or difficulty speaking, sudden vision loss, confusion, or a headache accompanied by fever and a stiff neck. Do not assume these symptoms are migraine, even if you have a history of migraine.

You can also review HealthLink BC's migraine guidance for additional information about symptoms and when to seek medical attention.

Living Well With Migraine Starts With Understanding It

Migraine can be unpredictable, exhausting, and disruptive. But understanding how migraine works can make it easier to recognize attacks, identify individual patterns, and explore treatments that fit your needs.

Start with the fundamentals: maintain a reasonably consistent sleep schedule, eat regular meals, stay hydrated, track your symptoms, and seek medical advice when headaches are frequent or disabling.

If lifestyle changes alone are not enough, remember that evidence-based acute and preventive treatments are available. You do not have to wait until migraine becomes unbearable before asking for help.

You deserve a treatment plan that takes your symptoms seriously and helps you get more of your life back.

-Neurologist and Co-Founder of NeuroNaturals

Medical disclaimer: This article is for educational purposes only and does not replace individualized medical advice, diagnosis, or treatment. Consult a qualified healthcare professional before starting, stopping, or changing a medication or supplement.

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