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碘是人体生长发育所必需的微量元素,也是人体合成甲状腺激素所必不可少的重要原料。如果人体缺乏碘,会出现严重的智力残疾等问题。如碘缺乏会阻滞胚胎生成发育,影响神经系统及智力的正常发育,导致弱智或智力残疾。人的胚胎期如果缺碘,会导致呆傻、聋哑等残疾。如果缺乏碘,人体合成甲状腺素的量就会严重减少或不足,导致甲状腺素功能低下或不足,阻滞生长发育,影响智力的正常发育。严重缺碘,可导致地方性克汀病,主要是胎儿期和婴儿期严重缺碘,病人呆傻、矮小、聋哑、瘫痪、面容特殊丑陋。
Iodine is a trace element essential for human growth and development, but also an essential raw material for the human body to synthesize thyroid hormone. If the body lacks iodine, there will be serious mental disabilities and other issues. Iodine deficiency, for example, blocks the development of the embryo and affects the normal development of the nervous system and intelligence, leading to mental retardation or mental retardation. If the lack of iodine in the human embryonic period, can lead to stupid, deaf and other disabilities. If the lack of iodine, the amount of human synthesis of thyroxine will be severely reduced or insufficient, resulting in hypothyroidism or inadequate, retard the growth and development, affecting the normal development of intelligence. Severe iodine deficiency can lead to localized cretinism, mainly in the fetal and infancy of a serious iodine deficiency, the patient stupid, short, deaf, paralyzed, especially ugly face.