What Is a Migraine and Why Does It Happen?

Hey Neurocurious, Dr. Claudia is here! We will explore the topic of migraines, which are much more than simply “just a headache.”

If you've ever had to lie down in a dark room, cancel plans last-minute, or felt like your brain was pulsing with every heartbeat… you may have experienced a migraine.

Migraines are a neurological condition, not simply a bad headache. They're often intense, recurrent, and can interfere with daily activities. While headaches are a symptom of a migraine, migraines involve a complex series of changes in the brain and nervous system.

How common are migraines in the U.S.?

You're not alone. According to the Centers for Disease Control and Prevention (CDC), migraines affect about 1 in 6 Americans, that’s over 40 million people.

They’re more common in:

  • Women (3x more likely than men)

  • People aged 18–44

  • Those with a family history of migraines

Migraines are one of the most disabling neurological conditions worldwide, especially during the most productive years of life.

So… why do migraines happen?

We still don’t have a complete answer, but we do know that migraines are related to abnormal brain activity involving:

Changes in the brainstem and its interaction with the trigeminal nerve (a major pain pathway)

Imbalances in brain chemicals like serotonin, which help regulate pain

Genetic factors that make some people more sensitive to triggers

Activation of certain areas of the brain that process pain, light, sound, and smell

In some people, migraines are also associated with auras, visual or sensory disturbances that occur before or during the migraine.


Migraines are real, disabling, and neurologically based, not imagined, exaggerated, or something you can just “push through.”

If you experience recurring headaches with these symptoms, it’s worth talking to a neurologist. Getting a proper diagnosis is the first step toward getting relief.

Understanding what migraines are helps reduce stigma and improve care.

Knowledge is power — especially when it comes to your brain.

Have questions or thoughts?

Feel free to leave your comments or doubts in the form section below — I’d love to hear from you!



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