又到蚊子猖狂的夏日 被叮咬了如何有效止痒

查字典英语网 2019年09月30日

      SummermeansoutdoorBBQs, sunsets, fireworks… andmosquitosugh! Theseasonismeanttobespentoutside, buthowannoyingarethosemosquitos. Suddenlyrealizingthatyouhave 10 red, puffy, itchybumpsonyourlegsistheactualWOAT. Unfortunately, mosquitosarekindofunavoidableduringthesummer, sohowcanyoumakesurethatyourbitesgoawayasfastaspossible?

      夏天代表了户外烧烤、看日落、看烟火……啊,还有蚊子!这个季节注定要在室外度过,但蚊子太烦人了。突然发现腿上被叮了10个红红的、痒痒的大包真得吓一跳。不幸的是,蚊子在夏天几乎是不可避免的,所以怎么才能使被叮的包尽快消失呢?

      Don'titchthem. You'rekidding, right?! Nope… ifyoucanavoiditchingyourmosquitobites, theywillbelessitchyinthelongrun, andgoawayfaster! Why? Wellbasically, onceamosquitobitesyou, itleavesbehinditssalivawhichyourbodyrecognizesasaforeignsubstance. So, inresponse, yourbody'simmunesystemproducesantibodiestofighttheinvader, whichresultsinthereleaseofhistamine (thecompoundthatmakesthingsitchandswell). Whenyoustartitchingamosquitobite, yougiveyourimmunesystemanotherwake-upcall, andmoreantibodiesandhistaminearereleased, aka, moreswelling, itching, andredness.

      不要挠。你开玩笑吧?并没有……如果你能不去挠蚊子叮咬的部位,他们之后就不会那么痒,也会消失得更快!为什么呢?其实一旦你被蚊子咬了,留在你体内的蚊子唾液就会被你的身体视为异物,所以为了对抗异物,你身体的免疫系统会产生抗体来对抗入侵者,释放组胺(这种化合物会使皮肤发痒肿胀)。挠蚊子叮咬部位会再次唤醒免疫系统,然后就会释放更多的抗体和组胺,这就意味着会更肿更痒更红。

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