Located near the base of the neck, the thyroid is a large endocrine gland that produces hormones that help control growth and metabolism.
甲状腺位于颈部的底部附近，是一个很大的内分泌腺体，它产生激素，协助控制生长和新陈代谢。
2
Thyroidhormones 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。
3
In addition to reproductive effects, animal tests have found that PBDEs can alter brain development and thyroidhormones, which regulate growth and development of cells and many key bodily functions.