What triggers a headache?

What triggers a migraine headache?

  • Answer:

    Migraine headaches seem to be caused in part by changes in the level of a body chemical called serotonin.

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Migraine headaches seem to be caused in part by changes in the level of a body chemical called serotonin. !

Sara Snider

the cause of a migraine is not fully understood, people who have migraine headaches have a family history of migraines.

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