When you sleep, your body produces human growth hormone (HgH), which not only builds muscle, but also stimulates your bone marrow, where immune cells are created.

当你睡觉的时候，身体会产生一种人体生长激素(HgH)，它不仅促进肌肉生长，还刺激你的骨髓，而免疫细胞正是在这里产生的。

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Recombinant human growth hormone (hGH) has been used to increase growth and final height in girls who have Turner syndrome.

基因重组生长素已经被应用在促进透纳氏症女孩之生长及最终之身高。

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"Let me be clear: I have never taken steroids or HGH (human growth hormone), " Clemens insisted in his opening statement.

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He was asked whether he had taken human growth hormone (HGH) to aid his recovery from reconstructive knee surgery in 2008.

BBC: Tiger Woods targeting fifth Masters victory at Augusta

Wednesday morning, he'll be ushered into a congressional hearing room to answer questions from a congressional committee on allegations he boosted his pitching career with steroids and human growth hormone (HGH).

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