頭皮屑文案

人，為什么會(huì)有頭皮屑？

頭皮屑的存在總是令人困擾

大家有沒有好奇過頭皮屑到底從何而來今天將向大家展示我們?yōu)槭裁磿?huì)有頭皮屑首先讓我們認(rèn)識(shí)一下生成頭皮屑的“罪魁禍?zhǔn)住保厚R拉色菌。這是一種酵母菌，存在于我們的頭皮上：Hereinthisabundantforest,Malassezia(馬拉色菌)isequippedwitheverythingitcouldeverneed.Feastingconstantly,it’sinparadise.Butwait--what’sthis?Infact,

Malasseziaisatypeofyeastthatlivesanddinesonallofourscalps.Andinabouthalfofthehumanpopulation,itsactivitycausesdandruff

(頭皮屑).

那么，為什么有些人的頭皮屑總是比較多？又該怎樣治療呢？

其實(shí)，我們身上總是寄生著許多微生物，馬拉色菌也是其中一員。它們寄生在產(chǎn)生毛發(fā)的毛囊中，以毛囊分泌的皮脂為食，我們的頭皮是我們身體上最油的地方之一，當(dāng)馬拉色菌消耗頭皮的油脂時(shí)就會(huì)產(chǎn)生頭皮屑：Wemightconsiderourselvesindividuals,butwe’rereallycolonies.Ourskinhostsbillionsofmicrobes.Malasseziayeastsmakethemselvesathomeonourskinshortlyafterwe’reborn.Follicles(毛囊),thetinycavitiesthatgrowhairsalloverourbody,makeforespeciallypopularlivingquarters.Malasseziaarefondofthesehideoutsbecausetheycontainglands(腺)thatsecrete(分泌)anoilcalledsebum(皮脂)that’sthoughttolubricateandstrengthenourhair.Malasseziaevolvedtoconsumeourskin’sproteinsandoils.Andbecauseofitsmanysebum-secretingfollicles,ourscalpisoneoftheoiliestplacesonourbody—andconsequently,oneoftheyeastiest.Asthesefungifeastonourscalp’soils,dandruffmayform.

馬拉色菌通過分泌一種酶來“吃”皮脂，但它們只攝入飽和脂肪，而殘留的不飽和脂肪酸就與皮膚作用產(chǎn)生頭皮屑：Thisisbecausesebumiscomposedofbothsaturatedandunsaturatedfattyacids.Saturatedfatsneatlypacktogether.Unsaturatedfats,ontheotherhand,containdoublebondsthatcreateanirregularkinkintheirstructure.Malasseziaeatsebumbysecretinganenzyme(酶)thatreleasesalloftheoil’sfattyacids.Buttheyonlyconsumethesaturatedfats,leavingtheunsaturatedonesbehind.Theseirregularlyshapedleftoverssoakintotheskinandpryitsbarrieropen,allowingwatertoescape.

Thebodydetectsthesebreachesandrespondsdefensively,causingtheinflammationthatgivesdandruffit’sitch.

Italsomakestheskincellsproliferatetorepairthedamagedbarrier.

一般而言，我們的皮膚表皮每?jī)傻饺軙?huì)完成一次更新，頭皮屑便是那些無法正常成熟分化的細(xì)胞團(tuán)塊脫落而成的：Usually,ourskin’soutersurface,orepidermis,completelyrenewsitselfeverytwotothreeweeks,Epidermalcellsdivide,moveoutwards,die,andformtheskin’stoughouterlayer,whichgraduallyshedsoffinsinglecellsfartoosmalltosee.

Butwithdandruff,cellschurnoutquicklytocorrectthebrokenbarrier,meaningtheydon’tmatureanddifferentiateproperly.

Instead,theyformlarge,greasyclumpsaroundthehairfolliclethatareshedasvisibleflakes.

因此，為了減少頭皮屑，我們可以使用含抗真菌成分的洗發(fā)水：ThisishowMalassezia’svoraciousappetiteandourbodiesreactiontoitsby-productsleadtodandruff.Currently,

themosteffectivewaytogetridofdandruffisbyusingantifungalsinthingslikeshampoos,applieddirectlytothescalp,tokillMalassezia.并不是所有人都有頭皮屑，有些人更容易長(zhǎng)頭皮屑。是什么導(dǎo)致這種個(gè)體差異尚不明確，關(guān)于頭皮屑，科學(xué)家們還在進(jìn)行研究：Forthosewhoexperiencedandruff,itusuallycomesandgoesassebumsecretionsvarythroughoutone'slifetimeduetohormonalchanges.ButdespitethefactthatMalasseziacolonizeeveryonetoasimilarextent,noteveryonegetsdandruff.Somepeoplearemoresusceptible.Exactlywhyisunclear.Dopeoplewithdandruffhaveacertaingeneticpredisposition?Istheirskinbarriermorepermeable?Scientistsarecurrentlyinvestigatingifpeoplewithdandruffdo,infact,losemorewaterthroughtheirscalps,andwhetherthisiswhat’sleadingtheirskincellstoproliferate.ResearchersarelearningthatMalasseziacommunicatewithourimmunesystemusingsmall,oilymoleculescalledoxylipins(氧脂素)thatregulateinflammation.Iftheycanfindawaytoinhibitinflammatoryoxylipinsandboostanti-inflammatoryones,theycoulddevelopnewtreatments.

同時(shí)，科學(xué)家們也在探索馬拉色菌是否對(duì)人體有好處：Scientistsarealsoinvestigatingifthere’sanybenefittoourrelationshipwithMalassezia.Theyhypothesizethatdandruff,whichcanbeuncomfortableandembarrassingforus,createsareliable,oilyfoodsourcefortheyeast.Butdandruffisn’tcontagiousoragreatthreattoourhealth.And

Malasseziaseemtoexcelatdefendingtheirterritory,ourskin,fromother,moreharmfulmicrob