But many tend to forget that the body has an extraordinary immune system built in to help the body heal itself without outside intervention.

但许多人却忘记，身体本就有一套非凡的免疫系统来帮助它在没有外力干涉的情况下自愈。

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While the gas is produced naturally by the body in low doses, in high doses it acts as a broad-spectrum poison, affecting many of the body’s systems simultaneously, particularly the nervous system.

人体本身也会自然产生很少量的硫化氢，但高剂量的硫化氢就成了一种广谱的毒剂。 它会同时影响身体的各个系统，尤其会对神经系统带来损伤。

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The illness can stress the immune system and the hypothalamic-pituitary axis, a system that controls many body processes.

这种疾病可以对免疫系统和下丘脑-垂体轴增加负担。 下丘脑-垂体轴是一种控制许多机体运作的系统。

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We have other ways of protecting; many of our cells are inside our body protected by specialized cells of our skeletal system.

人类有其它的保护机制,我们体内的细胞受,特化的骨骼细胞保护

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Sleep deprivation also led to an increase in the activity of the sympathetic nervous system, which controls many of the body's "involuntary" functions.

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Schreiber theorizes that many early cancers arising in the body are killed off by the immune system.

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They therefore programmed their system to look at a great many other characteristics, including body posture, direction of gaze and even the specific words that were being spoken.

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