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What Causes Migraines?
The precise underlying cause of migraines is unknown. The principal theory is that they are sparked by spasms in the arteries that supply blood to the brain. Some scientists believe that the brain chemical serotonin is the reason various blood vessels constrict and widen abnormally.
The frequency of migraines can be dependent upon one's sensitivity to various triggering factors. Some factors that have been known to increase one's likelihood of becoming inflicted with a migraine headache include:
- Stress: migraines sometimes occur after the resolution of a conflict or stressful situation
- Lack of sleep
- Changes in weather
- Rapid change in hormone levels (example: during menstrual cycles)
- Environmental chemicals
- Liver problems
- Dental pain
- Certain foods, including: cured meats, red wine, onion, freshly baked yeast products, eggs, alcohol, nuts, and aged cheese
- Medical conditions: depression, severe hypertension, etc.
- Medications: estrogen has been linked to increasing the symptoms of a migraine in many women who take it.
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