What is your brain doing during a headache?
But during a migraine, these stimuli feel like an all-out assault. The result: The brain produces an outsize reaction to the trigger, its electrical system (mis)firing on all cylinders. This electrical activity causes a change in blood flow to the brain, which in turn affects the brain’s nerves, causing pain.
Does your brain swell during a headache?
Causes & triggers
Migraine pain occurs when excited brain cells trigger the trigeminal nerve, one of five nerves located in the brain, to release chemicals that irritate and cause blood vessels on the surface of the brain to swell, according to the National Headache Foundation.
What is happening in your body when you have a migraine?
One aspect of migraine pain theory explains that migraine pain happens due to waves of activity by groups of excitable brain cells. These trigger chemicals, such as serotonin, to narrow blood vessels. Serotonin is a chemical necessary for communication between nerve cells.
- What is your brain doing during a headache?
- Does your brain swell during a headache?
- What is happening in your body when you have a migraine?
- What happens to the blood vessels in the brain during a migraine?
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