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What causes the aura phase?

Before a migraine occurs, brain chemicals cause the nerve cells in the brain to begin acting up. The electrical activity in the brain stimulates different areas, causing disruptions and sensations such as vision and language disturbances. These changes cause the aura phase symptoms. No more than a quarter of migraine sufferers ever experience aura.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.