Migraine affects well over a billion people globally, yet it is still widely dismissed as just a bad headache. It is not. It is a neurological condition with distinct phases, identifiable triggers, and, when managed correctly, treatable symptoms.
This guide covers everything you need to understand about migraine: how it differs from ordinary headaches, what sets it off, what happens during an attack, and what your options are for relief and prevention.
Understanding Migraine
What Is a Migraine?
A migraine is a recurrent neurological condition characterised by intense, often one-sided head pain. The pain is typically throbbing or pulsating and can last anywhere from four hours to three days if untreated.
Unlike tension headaches, migraines are accompanied by other symptoms, nausea, sensitivity to light and sound, and sometimes visual disturbances. They are not triggered by a single cause and do not respond to ordinary painkillers in the way a routine headache might.
How Is a Migraine Different from a Headache?
A headache is a symptom; it can result from tension, dehydration, sinusitis, or many other causes. Migraine is a condition in itself, with its own set of phases and associated symptoms that extend well beyond head pain.
Someone with migraine may feel warning signs hours before the headache starts, experience visual changes during the attack, and feel drained or foggy for a day afterward. That pattern, predictable, recurring, and multi-phased, is what separates it from an ordinary headache.
How Common Are Migraines?
Migraine is one of the most prevalent neurological disorders in the world. It tends to run in families and affects women more frequently than men, partly due to hormonal influences. Many people experience their first migraine in adolescence or early adulthood, though it can begin at any age.
Types of Migraine
Migraine Without Aura
This is the most common form. The headache arrives without any preceding visual or sensory warning signs. Pain is typically moderate to severe, one-sided, and worsened by physical activity. Nausea and light sensitivity are common companions.
Migraine With Aura
About a third of people with migraine experience aura, temporary neurological symptoms that develop in the 20–60 minutes before the headache begins. These include zigzag lines or flickering lights in the visual field, numbness or tingling in the face or hands, or difficulty finding words. Aura symptoms typically disappear completely before or as the headache begins.
Chronic Migraine
When migraine headaches occur on 15 or more days per month for at least three months, with at least eight of those days having migraine features, the condition is classified as chronic migraine. This significantly affects daily functioning and requires a more structured preventive approach.
Vestibular Migraine
Vestibular migraine involves significant dizziness or vertigo as a core symptom, sometimes without a prominent headache. It can be difficult to distinguish from inner ear disorders and often requires specialist assessment to diagnose correctly.
Hemiplegic Migraine
A rare and more serious type, hemiplegic migraine causes temporary weakness on one side of the body, mimicking stroke-like symptoms. It tends to run in families and requires careful medical evaluation to rule out other causes.
Menstrual Migraine
Some women experience migraines that are closely linked to their menstrual cycle, typically occurring in the days just before or during menstruation. This is driven by the drop in oestrogen levels at this time and may require a different preventive strategy.
What Causes Migraines?
Genetic Factors
Migraine has a strong hereditary component. If one parent has migraine, the likelihood of a child developing it is notably higher. Several genes associated with brain excitability and pain signalling have been implicated, though no single gene explains all cases.
Hormonal Changes
Oestrogen fluctuations have a well-documented connection to migraine. This is why many women notice more frequent or severe attacks around menstruation, during pregnancy, or at the time of menopause. The relationship between hormones and migraine is one reason women are disproportionately affected.
Stress and Emotional Triggers
Stress is among the most common factors reported to trigger migraine attacks. Interestingly, attacks often occur not during the stressful period itself but in the hours after, the so-called ‘let-down’ effect when tension drops suddenly after a period of high stress.
Sleep-Related Triggers
Both too little and too much sleep can provoke a migraine attack. Irregular sleep schedules, shift work, and jet lag are common culprits. The brain’s sensitivity to disrupted circadian rhythm makes sleep hygiene a key part of migraine management.
Environmental Triggers
Bright or flickering lights, strong perfumes, loud noise, and changes in air pressure or temperature are all environmental factors that can initiate a migraine in susceptible individuals. These triggers vary from person to person and are best tracked over time.
Common Migraine Triggers
Foods That Trigger Migraines
Certain foods and drinks are known to trigger migraines in some people. Commonly reported ones include:
- Aged cheeses (which contain tyramine)
- Alcohol intake, especially red wine and similar beverages
- Processed meats containing nitrates
- Foods with MSG (monosodium glutamate)
- Chocolate products made with a high percentage of cocoa
- Synthetic sweetening agents
It is worth noting that not all of these will be relevant to every individual. Keeping a food and symptom diary helps identify personal patterns.
Dehydration
Even slight dehydration can make a person more susceptible to a migraine attack. Drinking adequate water throughout the day, particularly in hot weather or during physical activity, is one of the simplest preventive measures.
Skipping Meals
A drop in blood sugar from going too long without eating is a well-recognised migraine trigger. Regular, balanced meals help maintain the stable internal environment the migraine-prone brain needs.
Bright Lights and Strong Smells
Fluorescent lighting, screens, glare from the sun, and strong odours, whether pleasant or unpleasant, are sensory triggers that can provoke an attack in sensitive individuals. Screen time has become an increasingly common trigger as more people spend extended hours in front of digital devices.
Weather Changes
Shifts in barometric pressure, humidity, or temperature, particularly approaching storms, are frequently linked to migraine onset. While these cannot be controlled, knowing about this connection helps people prepare and respond early.
Signs and Symptoms of Migraine
Early Warning Signs (Prodrome)
Up to 24-48 hours before a migraine headache begins, the body may send early signals. These prodrome symptoms vary but can include mood changes (irritability or unusual cheerfulness), food cravings, neck stiffness, increased thirst, and frequent yawning. Learning to recognise these early signs gives people time to act before the pain sets in.
Symptoms During a Migraine Attack
During the headache phase, the most prominent symptom is throbbing or pulsating pain, usually on one side of the head, though it can be bilateral. This is typically accompanied by:
- Nausea, with or without vomiting
- Heightened sensitivity to light (photophobia)
- Heightened sensitivity to sound (phonophobia)
- Sensitivity to smell
- Worsening of pain with routine physical movement
During an attack, most people prefer to lie in a quiet, dark room. The pain can be severe enough to interfere with work, conversation, and basic daily tasks.
Symptoms After a Migraine (Postdrome)
Once the main headache resolves, many people go through a postdrome phase, sometimes called the ‘migraine hangover’. This involves fatigue, difficulty concentrating, low mood, and a general sense of feeling drained. It can last several hours or, in some cases, up to a day.
How Are Migraines Diagnosed?
Medical History and Symptom Assessment
Migraine diagnosis is primarily clinical. A doctor will take a thorough history of headache patterns, associated symptoms, family history, and any identified triggers. The frequency, duration, and severity of attacks all factor into the diagnostic picture.
Neurological Examination
A neurologist will carry out a focused neurological examination to assess reflexes, coordination, and sensory function. This helps to confirm that no underlying structural or neurological condition is responsible for the headaches. Neurology assessment is particularly important when headaches are atypical, rapidly worsening, or accompanied by unusual symptoms.
Imaging Tests and Other Investigations
Migraine does not usually require imaging to be diagnosed. However, an MRI or CT scan may be recommended to rule out other causes, particularly if the headache pattern is new, changes over time, or is accompanied by neurological symptoms. In a small number of cases where surgery-related causes are suspected, a neurosurgery referral may be appropriate.
Migraine Treatment Options
Medications for Immediate Relief
Acute or abortive treatments are taken at the onset of a migraine to reduce its severity and duration. Options include:
- Over-the-counter analgesics: Ibuprofen, aspirin, or paracetamol can help in mild to moderate attacks if taken early.
- Triptans: These are the most widely used migraine-specific medications. They work by constricting blood vessels and blocking pain pathways in the brain.
- Anti-nausea medications: Often used alongside pain relief to address nausea and vomiting during an attack.
- CGRP receptor antagonists (gepants): A newer class of acute treatment that targets the calcitonin gene-related peptide pathway involved in migraine.
Preventive Treatments
Preventive treatment is considered when attacks are frequent, long-lasting, or severely impair quality of life. The goal is to reduce how often attacks occur and make each one less severe. Options include beta-blockers, tricyclic antidepressants, anti-epileptic drugs, and newer CGRP monoclonal antibody injections, which have significantly changed chronic migraine management in recent years.
Lifestyle Modifications
Medication works best when supported by consistent lifestyle habits. Regular sleep, eating at consistent times, moderate exercise, and stress reduction all contribute to reducing migraine frequency over time. These are not secondary measures; for some people, lifestyle changes alone bring meaningful improvement.
Trigger Management Strategies
Once a person identifies their specific triggers, they can work to minimise exposure. For food triggers, this means dietary adjustments. For sensory triggers, practical steps like using sunglasses, avoiding strong perfumes, or adjusting screen brightness can reduce attack frequency.
Migraine Prevention Tips
Maintaining Healthy Sleep Habits
Aim for consistent sleep and wake times, even on weekends. Avoid sleeping in excessively or going to bed much later than usual; the migraine brain is sensitive to disrupted rhythms.
Managing Stress
Regular relaxation practices, mindfulness, yoga, breathing exercises, or simply scheduled downtime help maintain a lower baseline stress level. Cognitive behavioural therapy (CBT) has evidence supporting its use in migraine prevention.
Staying Hydrated
Carry water with you and drink consistently through the day. Reducing caffeine intake gradually (avoiding a sudden drop, which itself can trigger attacks) and limiting alcohol are both worthwhile adjustments.
Keeping a Migraine Diary
A diary that records the date, duration, severity, and potential triggers of each attack is one of the most practical tools available. Over weeks and months, patterns emerge that are genuinely useful for both self-management and clinical consultations.
When Should You See a Doctor for Migraine?
Warning Signs That Require Medical Attention
Seek prompt medical attention if you experience:
- A sudden, severe headache unlike any you have had before
- Headache accompanied by fever, neck stiffness, confusion, or rash
- Neurological symptoms such as weakness, speech difficulty, or vision loss that do not resolve
- New headaches appearing after age 50 without a prior history
- Headaches that worsen progressively over days or weeks
These presentations need investigation before a migraine diagnosis can be made safely.
When to Consult a Neurologist
If your migraines are frequent, difficult to control, or significantly affecting your quality of life, a referral to a neurologist is the right step. Specialist neurology care allows for a thorough evaluation, accurate diagnosis, and access to preventive treatments, including newer options that are not always available through general practice. You do not need to simply manage through frequent attacks without specialist support.
Living With Migraine: Long-Term Management Strategies
Managing migraine over the long term is about building a consistent routine rather than reacting to each attack as it comes. The most effective approach combines the right medication with reliable lifestyle habits and good self-awareness about triggers.
Open communication with your doctor matters too. If your current treatment is not working, whether that means attacks are still frequent, medications are causing side effects, or your quality of life is being significantly affected, say so. Treatment plans can and should be adjusted.
Living with migraine does not have to mean simply enduring it. With the right support, most people find a way to reduce attack frequency and manage episodes more effectively when they do occur.
Conclusion
Migraine is a neurological condition that goes far beyond a bad headache. It has recognisable patterns, identifiable triggers, and established treatment options. The challenge is that no two people’s experience is identical, which is why personalised assessment and management matter.
If you are struggling with frequent or severe migraine attacks, consulting a neurologist is a practical and worthwhile step. Early, accurate diagnosis leads to better treatment choices, and better treatment leads to fewer days lost to pain.
Frequently Asked Questions
1. What is the main cause of migraine?
There is no single cause. Migraine results from a combination of genetic predisposition and neurological sensitivity to triggers, including hormonal shifts, sensory stimuli, disrupted sleep, stress, and certain foods. The underlying mechanism involves changes in brain activity and pain-signalling pathways.
2. How long does a migraine attack last?
An untreated migraine attack typically lasts between 4 and 72 hours. Duration varies depending on the individual, the type of migraine, and whether any treatment is taken. Attacks that persist beyond 72 hours are referred to as status migrainosus and need medical attention.
3. What foods commonly trigger migraines?
Common dietary triggers include aged cheese, red wine, processed meats, chocolate, caffeinated drinks, and foods containing MSG or artificial sweeteners. These do not trigger attacks in everyone; identifying your personal food triggers through a diary is more useful than following a blanket restriction list.
4. Can migraines be prevented?
Yes, for many people. A combination of identifying and avoiding personal triggers, maintaining regular sleep and eating patterns, staying hydrated, and, when attacks are frequent, using preventive medication can significantly reduce how often migraines occur. It requires consistency rather than occasional effort.
5. When should I seek medical care for migraine symptoms?
See a doctor if your headaches are occurring more than four times a month, are severe enough to affect your daily activities, are not responding to over-the-counter medication, or involve unusual neurological symptoms. A neurologist can assess whether preventive treatment or specialist investigation is needed.
Disclaimer: This article is intended for general information and should not be used as a substitute for professional medical advice. Please consult a qualified specialist for any health concerns.
