尤其具有挑战性的是头部损伤，无论轻微还是严重，能够扰乱位于大脑外面的身体嗅觉感受器—嗅球神经细胞功能。
Especially challenging are those that result from head injuries, whether minor or severe, that disrupt the function of the body's smell receptors - olfactory nerve cells that lie outside the brain.
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。
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.
他说：“胶质细胞增生发生在大脑中就相当于身体伤口的自动愈合，这种情况通常发生在出现神经元的损伤时，例如中风和多发性硬化症等等。”
He said: 'Gliosis is thought to be the brain equivalent of wound healing and is typically seen in conditions of neuronal injury, such as stroke and multiple sclerosis.
它预示着你的身体很可能即将出现一种更严重的疾病，而这一疾病可能会损伤你的心脏和其它脏器，比如肾脏、眼睛和神经系统。
It signals the likely onset of a more serious condition, and it can begin the process of doing damage to your heart and possibly other organs such as the kidneys, eyes, and nervous system.
这些问题在男孩子当中更加普遍，尤其是那些在婴儿时期遭受了神经组织损伤，或者身体虚弱到需要通过供氧来维持生命的男孩子们。
These problems were more common among males, those with injured nerve tissue in the brain and those who had been given oxygen supplies for days as a baby.
这些问题在男孩子当中更加普遍，尤其是那些在婴儿时期遭受了神经组织损伤，或者身体虚弱到需要通过供氧来维持生命的男孩子们。
These problems were more common among males, those with injured nerve tissue in the brain and those who had been given oxygen supplies for days as a baby.
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