人类的头发主要由一种叫角朊的蛋白质组成，并含有水分及在身体其他部分也可找到的微量金属和矿物质。
A human hair consists mainly of a protein called Keratin. It also contains some moisture and the trace metals and minerals found in the rest of the body.
脂朊脂酶并不是唯一受肌肉不活跃影响的分子。
Nor is lipoprotein lipase the only molecule affected by muscular inactivity.
丘脑是大脑中负责睡眠调控的部分，致死性家族性失眠症正是由于一种异常蛋白质“朊蛋白”在丘脑中的累积产生的。
F.F.I. is caused by anaccumulation within the thalamus — the part of the brain that controlssleep regulation — of abnormal proteins called “prions.”
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