ELI5 mode
Migraine aura refers to a series of sensory disturbances that typically precede or occur during a migraine attack, often manifesting as visual phenomena like flashing lights, zigzag lines, or temporary blind spots. This phase serves as a warning sign for many sufferers, allowing them to take preventive measures, though it's absent in about 70-80% of migraine cases and can sometimes occur without the headache itself.
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