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  • Look at that silver fox.

    看看這「性感的熟齡男子」。

  • So distinguished, so sophisticated.

    多麼睿智,多麼成熟。

  • Wow!

    哇!

  • But what if I told you that this guy was a millennial?

    但如果我說他是個千禧世代的人,你會相信嗎?

  • It's true, just barely.

    這是真的,差不多啦。

  • According to Joe, he started going gray when he was 16.

    據 Joe 所說,他頭髮在十六歲時開始變白。

  • By 22, he was pretty much totally gray.

    二十二歲時,他差不多就滿頭白髮了。

  • Why does that happen?

    這是怎麼發生的?

  • And why does hair turn gray in the first place?

    而頭髮到底為什麼會變白?

  • There's something about a silver fox, if you can pull it off.

    「性感的熟齡男女」都很有魅力,如果你辦的到的話啦

  • When I got rid of my gray hair, I wanted a natural look.

    當我決定脫離白髮時,我想要看起來很自然。

  • But many people hate the idea of going gray.

    但許多人討厭頭髮變白。

  • There's an entire industry built around fighting it.

    有一整個產業為了打擊白髮而出現。

  • It's like you took off 10 years.

    就像你年輕了十歲。

  • And in just five minutes.

    而且只要五分鐘。

  • Just For Men.

    為了男人。

  • She'll love the way you look.

    她會愛上你的模樣。

  • So why does it happen?

    所以,頭髮為什麼會變白?

  • The process of hair changing from darker color to white or gray with age is mainly due to genetics.

    髮色因年紀從較深色變成白色或灰色的主要原因為遺傳。

  • It can be inherited from either parent.

    可能遺傳自爸爸或媽媽都有可能。

  • The color of our hair is determined by the form of hair pigment that we have.

    決定我們髮色的基因是我們頭髮裡的色素。

  • The pigment is actually produced along the hair shaft, and there are two main forms of hair pigment.

    色素其實是沿著髮幹所製造出來的,且頭髮色素可分為兩大種類。

  • There's eumelanin and pheomelanin.

    真黑色素及褐黑素。

  • Eumelanin is what we see in brunettes and darker-haired people, and pheomelanin is what we see in blonds and redheads.

    真黑色素濃度較高就會成為褐髮色或深髮色的人,而褐黑色濃度較高則是金髮或紅髮的人。

  • The cells in our hair bulb produce a little bit of hydrogen peroxide, which is a metabolic byproduct, and typically there's an enzyme called catalase that breaks this down to water and oxygen.

    毛囊的細胞會產生一點過氧化氫,一種代謝副產物,且通常會有一種過氧化氫酶將過氧化氫分解為水與氧。

  • But as we age, there's declining levels of catalase, and this allows the build-up of hydrogen peroxide in the hair bulb, which damages and destroys the melanocytes, or the pigment producing cells, of our hair.

    當年紀增長,過氧化氫酶將會減少,導致過氧化氫強度增強,然後傷害或璀毀我們頭髮中的黑色素細胞與製造色素的細胞。

  • So I wanted you to take a look at my colleague Joe here.

    我想請你看看我的同事 Joe。

  • Joe is technically a millennial.

    他基本上是個千禧世代的人。

  • He started to go gray when he was 16, and by 22, it was pretty much gray all over.

    他的頭髮在十六歲時開始變白,二十二歲時幾乎整頭都白了。

  • What happened to Joe?

    Joe 怎麼了?

  • So when individuals gray early in life before the age of 20, it's called premature graying, and this is due to genes.

    當有人在二十歲前髮色開始變白,這叫做少年白,原因是基因。

  • And we know there's one gene in particular that's been targeted called interferon regulatory factor 4, which is important in regulating and producing melanin in the hair.

    我們已經鎖定頭髮裡有種基因叫 IRF4,與控制與製造頭髮中的黑色素有很大的關係。

  • Joe was lucky enough to inherit some genes that predisposed him to developing gray hair early in life.

    Joe 很幸運的遺傳了一些使他頭髮提早變白的基因。

  • Obviously, Joe has gray hair on his head.

    明顯地,Joe 有一頭白髮。

  • When you go gray on your head, does the hair on the other parts of your body go gray as well?

    當你的頭髮變白,這代表身體其他部分的毛髮也會變白嗎?

  • No, no, Joe, Joe!

    Joe!停!

  • We can picture it.

    我們可以自己想像。

  • So you can grow gray hair anywhere on your body.

    你身體的任何部分都可以長白髮。

  • Wherever you have hair, the hair is susceptible to oxidative damage and eventually going gray.

    只要你那處的毛髮是容易受到氧化損傷的,就會變白。

  • So the main cause of going gray is genetics, but what role can stress play?

    所以頭髮變白的主要原因是基因,那壓力呢?

  • After all, Obama didn't look like this when he showed up at the White House.

    畢竟......歐巴馬剛進入白宮時可不是長這樣。

  • So it's controversial the role that stress has in hair graying.

    壓力對頭髮變白的影響仍有爭議。

  • We know that stress creates oxidative damage in the body, and it's been linked to a lot of premature-aging syndromes.

    我們已知壓力會導致身體遭受氧化損傷,而這與許多提早老化的現象有關。

  • So it's thought that the stress, that stress causes oxidative damage, which may cause damage to the melanocytes and may cause us to grow gray earlier.

    所以有人認為壓力造成氧化損傷,而這可能也會對黑色素造成損害,導致頭髮提早變白。

  • We know that smokers tend to go gray more so than the general population.

    我們已知吸菸的人頭髮會比一般人白得快。

  • And again it's felt that it's probably due to the oxidative damage that smoke causes and how it affects the pigment-producing cells in the hair.

    相同的,有人將這歸咎於抽菸對頭髮裡製造黑色素的細胞造成的氧化損傷。

  • I think eating a well-balanced diet, so you make sure that you don't develop any nutritional deficiencies, that's another thing that can be done.

    我認為可以保持飲食均衡來避免營養不良,這是件可以做到的事。

  • And modulating your stress.

    還有調節自我壓力。

  • That's another thing you have control over, which over time can cause oxidative damage and, again, make you prone to potentially more gray hair.

    這是另一件你能控制的事,否則壓力可能會導致氧化損傷,而當然,進而增加你頭髮變白的可能。

Look at that silver fox.

看看這「性感的熟齡男子」。

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B1 中級 中文 美國腔 頭髮 黑色素 過氧化氫 基因 髮色 壓力

別再數頭上的白髮了!來看看白髮怎麼來的! (Why Some People's Hair Turns Gray)

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    Mackenzie 發佈於 2019 年 08 月 06 日
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