Thyroid hormones are critical to a baby's growth and brain development.

而甲状腺激素对婴儿的生长和脑部发育至关重要。

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It also makes thyroid hormones that control metabolism and helps maintain the immune system.

它也使甲状腺激素控制代谢及有助维持免疫系统。

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It absorbs iodine from the diet and produces thyroid hormones, which keep the body functioning normally.

它吸收碘从饮食和产生的甲状腺激素，维持身体正常运作。

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Other side effects may include tenderness in the neck and a temporary increase in thyroid hormones.

CNN: Graves' disease

Because this treatment causes thyroid activity to decline, you'll likely need treatment later to supply your body with normal amounts of thyroid hormones.

CNN: Graves' disease

Damage seems to stem from dioxin's interference with crucial biochemical messengers such as the thyroid hormones, which regulate metabolism and help the brain to develop.

CNN: THE GREAT DIOXIN SCARE