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1、头皮屑使你的 你看起来像在 所以头皮屑让头皮屑文案1/4 一则洗发水平面广告，文案：头皮屑会让你看起来很蠢。 头发痒。当你的头发痒时，你会抓你的头。当你挠头的时候, 思考。当你看起来像在思考，即使你真的不需要思考的时候。 你看起来很蠢。人，为什么会有头皮屑？头皮屑的存在总是令人困扰大家有没有好奇过头皮屑到底从何而来今天将向大家展示我们为什么会有头皮屑首先让我们认识一下生成头皮屑的罪魁祸首：马拉色菌。这是 一种酵母菌，存在于我们的头皮上：Here in this abundant forest, Malassezia （马拉色菌）is equipped with everything it co
2、uld ever need.Feasting constantly, its in paradise. But wait - whats this? Infact, Malassezia is a type of yeast that lives and dines on all of our scalps. And in about half of the human population, its activity causes dandruff （头皮屑）.MALASSEZIA GLOBOSAUma poKpiui indkov quo a Mofomtio Globoso urn qu
3、。ococro gturutmeiM cm nosso couro cobdudo 6忖 liaoda 6 da cohx covo cobc4udo.MALASSEZIA GLOBOSAUma poKpiui indkov quo a Mofomtio Globoso urn qu。ococro gturutmeiM cm nosso couro cobdudo 6忖 liaoda 6 da cohx covo cobc4udo.NATURAL OILSSCALP CONDITIONA quodod do no$o couio caocludo difcre as pewcas A pc$q
4、ui（a moitfQ qg pevoos con caspo tcc&e o 恰， cabeloi mvoi$ AociStnenfe iffildven.那么，为什么有些人的头皮屑总是比较多？又该怎样治疗呢?其实，我们身上总是寄生着许多微生物，马拉色菌也是其中一员。 它们寄生在产生毛发的毛囊中，以毛囊分泌的皮脂为食，我们的头皮 是我们身体上最油的地方之一，当马拉色菌消耗头皮的油脂时就会产 生头皮屑： We might consider ourselves individuals, but were really colonies. Our skin hosts billions of mi
5、crobes. Malassezia yeasts make themselves at home on our skin shortly after we/re born. Follicles （毛囊）, the tiny cavities that grow hairs all over our body, make for especially popular living quarters. Malassezia are fond of these hideouts because they contain glands （腺）that secrete （分泌）an oil calle
6、d sebum （皮月旨） that/s thought to lubricate and strengthen our hair. Malassezia evolved to consume our skins proteins and oils. And because of its many sebum-secreting follicles, our scalp is one of the oiliest places on our bodyand consequently, one of the yeastiest. As these fungi feast on our scalp
7、s oils, dandruff may form.马拉色菌通过分泌一种酶来吃皮脂，但它们只摄入饱和脂肪， 而残留的不饱和脂肪酸就与皮肤作用产生头皮屑：This is because sebum is composed of both saturated and unsaturated fatty acids. Saturated fats neatly pack together. Unsaturated fats, on the other hand, contain double bonds that create an irregular kink in their structure
8、.Malassezia eat sebum by secreting an enzyme （酶）that releases all of the oils fatty acids. But they only consume the saturated fats, leaving the unsaturated ones behind. These irregularly shaped leftovers soak into the skin and pry its barrier open, allowing water to escape. The body detects these b
9、reaches and responds defensively, causing the inflammation that gives dandruff its itch. It also makes the skin cells proliferate to repair the damaged barrier.一般而言，我们的皮肤表皮每两到三周会完成一次更新，头皮屑便是那些无法正常成熟分化的细胞团块脱落而成的：Usually, ourskins outer surface, or epidermis, completely renews itself every two to thre
10、e weeks, Epidermal cells divide, move outwards, die, and form the skins tough outer layer, which gradually sheds off in single cells far too small to see. But with dandruff, cells churn out quickly to correct the broken barrier, meaning they don/t mature and differentiate properly. Instead, they for
11、m large, greasy clumps around the hair follicle that are shed as visible flakes.因此，为了减少头皮屑，我们可以使用含抗真菌成分的洗发水：This is how Malassezias voracious appetite and our bodies reaction to its by-products lead to dandruff. Currently, the most effective way to get rid of dandruff is by using antifungals in thin
12、gs like shampoos, applied directly to the scalp, to kill Malassezia.并不是所有人都有头皮屑，有些人更容易长头皮屑。是什么导致 这种个体差异尚不明确，关于头皮屑，科学家们还在进行研究：For those who experience dandruff, it usually comes and goes as sebum secretions vary throughout ones lifetime due to hormonal changes. Butdespite the fact that Malassezia col
13、onize everyone to a similar extent, not everyone gets dandruff. Some people are more susceptible. Exactly why is unclear. Do people with dandruff have a certain genetic predisposition? Is their skin barrier more permeable? Scientists are currently investigating if people with dandruff do, in fact, l
14、ose more water through their scalps, and whether this is whats leading their skin cells to proliferate. Researchers are learning that Malassezia communicate with our immune system using small, oily molecules called oxylipins （氧脂素）that regulate inflammation. If they can find a way to inhibit inflamma
15、tory oxylipins and boost anti-inflammatory ones, they could develop new treatments.Sebaceous同时，科学家们也在探索马拉色菌是否对人体有好处：Scientists are also investigating if there/s any benefit to our relationship with Malassezia. They hypothesize that dandruff, which can be uncomfortable and embarrassing for us, create
16、s a reliable, oily food source for the yeast. But dandruff isnt contagious or a great threat to our health. And Malassezia seem to excel at defending their territory, our skin, from other, more harmful microbes like Staphylococcus aureus.So, while scientists have gotten to the bottom of many mysteries surrounding this condition, it must be said: dandruff remains a head-scratcher.尽管科学家们已经解开了有关头皮屑的许多谜团但不得不说头皮屑仍是让许多人挠头的大难题