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新奇事件簿(翻译+字幕+讲解):压力会导致灰发

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Scientists have discovered that stress is one factor in turning our hair grey, white or silver - at least, in mice. Stem cell biologists from Harvard University in the USA conducted a series of tests on mice to ascertain the effects of stress on the rodents. The scientists injected the mice with an ingredient found in chili peppers that gives them their heat. The compound made the mice stressed. This caused a hair-colouring pigment in the mice to go into overdrive as a reaction to the stress and deplete colour-regenerating stem cells. This caused the mice's hair to rapidly turn white. Lead researcher, Professor Ya-Chieh Hsu, said: "The detrimental impact of stress that we discovered was beyond what I imagined."

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压力会导致灰发.jpeg
People have wondered for centuries about the link between stress and greying hair. It is believed that France's Queen Marie Antoinette's hair turned white the night before she was beheaded during the French Revolution in the late-eighteenth century. More recently, we have witnessed the locks of presidents and other world leaders quickly lose colour. The strains of leadership seem to go to the roots of things, especially hair follicles. Professor Hsu said the loss of the pigment-regenerating stem cells cannot be reversed. She said: "Once they're gone, you can't regenerate pigment any more. The damage is permanent." Worryingly, she hypothesised that stress could be responsible for accelerating the aging process.

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重点单词   查看全部解释    
compound ['kɔmpaund]

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n. 混合物,复合词
n. 院子(用围墙圈起来

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ingredient [in'gri:diənt]

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n. 成分,原料,配料,因素

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revolution [.revə'lu:ʃən]

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n. 革命,旋转,转数

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pigment ['pigmənt]

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n。 色素,颜料 v。 把 。。。 加颜色,变色

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impact ['impækt,im'pækt]

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n. 冲击(力), 冲突,影响(力)
vt.

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stress [stres]

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n. 紧张,压力
v. 强调,着重

 
permanent ['pə:mənənt]

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adj. 永久的,持久的
n. 烫发

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deplete [di'pli:t]

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vt. 耗尽,使 ... 空竭

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regenerate [ri'dʒenərit]

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vt. 再生
adj. 再生的,复原的

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detrimental [。detri'mentl]

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adj. 有害的 n. 有害的人或事

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关键字: 压力 灰发 色素

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