(HealthDay News) -- Graves' disease occurs when the body's immune system causes the thyroid gland to produce more of a certain hormone than the body can use.
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The National Women's Health Information Center says the following factors may contribute to Graves' disease:
- Having a family history (genetic predisposition).
- Being a woman and producing female hormones.
- Experiencing extreme emotional stress or significant trauma may help trigger the disease in people who are prone to it.
- Being pregnant, which affects the thyroid.
- Having an infection.
-- Diana Kohnle
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