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Her mother has an underactive adrenal gland .

她的母亲肾上腺机能不全。

An underactive thyroid can make a child lethargic or too sleepy to pay attention .

一个运动不足甲状腺可以使孩子没精打采或太想睡注意.

Hypothyroidism ( underactive thyroid ) is often remains undetected due to its sluggish progress .

甲状腺功能减退症（underactive甲状腺），往往仍然未被发现的，由於其低迷的进展。

When the gland is underactive and the metabolism functions too slowly , you may feel sluggish and put on weight .

当甲状腺机能减退导致新陈代谢过慢时，你会感觉疲劳，体重也会增加。

In 1912 german doctors attempted to treat children who had underactive thyroids with normal thyroid cells , but to little avail .

1912年德国医生开始尝试用健康的甲状腺细胞来医治患有甲状腺功能减退的孩子，但是收效甚微。