我们睡觉的时候，身体会释放生长激素或者人体生长激素。
When we sleep, growth hormone, or HGH. is released into our bodies.
人体生长激素也被发现是一种起恢复作用的酏，虽然实验表明它也不能将生命时钟倒转。
Human growth hormone has also been touted as a restorative elixir, even though research has indicated that it can't turn back the clock.
人体生长激素能促进身体健康成长，细胞修复和再生，这对肌肉的发育是非常有必要的。
HGH stimulates healthy growth, cell repair and the regeneration which is necessary for muscle development.
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