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为什么蚊子不咬别人,只咬我? – 译学馆
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为什么蚊子不咬别人,只咬我?

Why Do Mosquitoes Bite Some People More Than Others? | What The FAQs | NowThis

是否想过蚊子总咬你而不咬你朋友的原因
(mosquito buzzing)
(蚊子的嗡嗡声)
Well I’ve been asking myself that question my whole life.
这个问题我问了自己一辈子
For some, summer means fun in the sun,
对于一些人 夏天是阳光下的乐趣
but if you like me, it’s all about escaping a constant threat of
但如果你像我一样 夏天就是躲避想吸你血
的微小飞行生物的持续威胁
To learn more about these pesky bloodsuckers,
为更了解这些讨厌的吸血者
I reached out an entomologist
我联系了一位昆虫学家
it’s a scientist who studies insects,
是个专门研究昆虫的科学家
to find out why some people, like myself,
一起去探究为什么像我这样的人
are more prone to mosquito bites than others.
比其他人更容易被蚊子叮咬
– It’s really essentially along the same lines
-本质上是同一个原因
as how your dog knows you, it’s smell.
就如同你的狗认出你 是通过气味
(upbeat music)
(轻快的旋律)
为什么蚊子会咬我?
– Other than being annoying AF,
除去极其烦人的声音
did you know mosquitoes are actually mass murderers?
你知道蚊子其实还是个杀人狂魔吗?
In 2016, more than 1,400 people died every day
2016年 全世界每天有超1400人死亡
from illnesses caused by mosquito bites worldwide.
死因是蚊子叮咬而引起的疾病
To put that in perspective,
经过客观分析
那年地球上被蚊子咬死的人比谋杀致死的多
And they all communicate by the famale mosquito
并且都是由于雌性蚊子的感染所致
because females are the only ones that bite.
因为只有雌性蚊子才咬人
– [Man] The male mosquito eats only vegetable food.
-[男]雄性蚊子只吃素
The female mosquito likes blood and eats it when she can.
雌性蚊子喜欢血液 并且能吃就不放过
– While both sexes feed on nectar,
-尽管雄性和雌性蚊子都吸食花蜜
females bite and draw the blood of humans or other mammals
雌性蚊子吸人或其他哺乳动物的血液
to get the protein and iron needed
来获取所需的蛋白质和铁
to grow and lay eggs.
以供生长和产卵
那它们如何一下子就找到你
– From a distance, they will see where you are
-在远处它们就能看到你
and then they can smell you at the same time,
同时它们还能闻到你的气味
the carbon dioxide that you’re exuding when you breathe.
和你呼吸的时候呼出的二氧化碳
And what they do is they follow a cone towards you,
它们所做的就是螺旋朝你飞来
kinda like the sharks do, and they’ll zigzag
有点像鲨鱼 它们会曲折前进
and come towards you
然后靠近你
and as soon as they get in the general vicinity of the human body warmth, perspiration,
并尽快到人体温暖 出汗的地方
things like that are what draw it to you at that point.
这些就是你吸引它们的原因
– Experts say mosquitoes can detect the carbon dioxide and the draw exhaling
-专家说蚊子能侦测到二氧化碳和呼出气体
在至少100英尺以外
What If all exhaling is CO2,
如果呼出的都是CO2
then how do they choose who to bite?
那它们怎么选择叮谁呢?
Researchers link this landing preference,
研究者把蚊子的着陆偏好
as they call it two blood types.
和我们所说的两种血型联系起来
During tests, Japanese researchers saw mosquitoes
在研究中 日本研究者发现蚊子
land on people with Type people O blood
停留在O型血人身上的数量
差不多是A血型的
as people type A
两倍
people type B blood, they fell somewhere in the middle.
吸B型血蚊子的数量 则是介于两者之间
(button clicking)
(按按钮声)
(projector clattering)
(机械运作声)
Wanna hear a fun fact?
想听个有趣的事实吗?
Researchers have also linked mosquito bites to beer consumption.
研究者们还将蚊子叮咬和啤酒消耗联系起来
喝一杯啤酒后 蚊子更有可能落在你的皮肤上
and that’s because alcohol makes you breathe harder
因为酒精会让你呼吸更粗重
and sweat more, therefore, producing more CO2.
出汗更多 因此 会产生更多的CO2
So you might want to consider
所以你可能需要考虑
switching out your drink preference during the summer
在夏天改变你对饮料的喜好
if you’re highly targeted by mosquitoes.
如果你经常被蚊子咬的话
(mosquitoes buzzing)
(蚊子的嗡嗡声)
Another reason mosquitoes might be highly attracted to you
你非常吸引蚊子的原因之一
is your scent or the chemicals on your skin.
是你的气味或你皮肤上的化学物质
– Now there’s about 300,a little over 300
-现大约有300多种
different odors that humans emanate,
不同的人体气味
and some of them are attractive to mosquitoes,
其中一些对蚊子很有吸引力
some of them are not attractive to mosquitoes.
有一些则不吸引蚊子
It’s thought to be genetically mediate
这被认为是基因调节所致
and it has something to do with the way that your body digests certain materials
并且这与你身体消化某些物质的方式有关
and the way the flora and fauna on your skin,
和你皮肤上的生态系统有关系
you know, bacteria, fungi, how they metabolize
你知道 细菌和真菌是如何代谢
some of the secretions you have on your skin.
你皮肤上的一些分泌物的吗?
And that is what draws mosquitoes to you.
而这就是吸引蚊子的原因
(spray hissing)
(喷雾声)
(quirky music)
(轻快的音乐)
– Mosquitoes are generally fought by using insecticide sprays or repellents.
-人们通常用杀虫喷雾或驱蚊剂来对付蚊子
Depending on the amount you apply,
取决于你用的量
that masks your smell and confuses mosquitoes
它能掩盖你的气味 从而迷惑蚊子
into thinking your blood is not appetizing.
误认为你的血液不可口
But according to researchers at the London School of Hiking and Tropical Medicine,
但据伦敦远足和热带医学院的研究人员称
这可能并不总是有效
You see, DEET is one of the main ingredients in insect repellents,
你知道 避蚊胺是驱蚊剂中主要原料之一
and during the study of North American mosquitoes,
而在对北美蚊子的研究过程中
researches found in
他们发现
蚊子在接触避蚊胺之后的
under three hours of being exposed to it.
三个小时内就产生了免疫
(mosquito buzzing) (skin slapping)
(蚊子嗡嗡声) (拍打皮肤声)
So how do we stop these bloodsuckers in their tracks?
那么我们如何阻止这些吸血者?
– Wear long sleeves, long pants.
-穿长袖长裤
Make sure you’re wearing them loosely,
尽量穿的宽松点
because mosquitoes can and will bite through tight clothing like Speedos.
因为蚊子一样能透过像Speedos一样的衣服咬你
It’s generally a good idea to wear lighter colors.
通常来说 穿浅色衣服是个好主意
They’re actually attracted to the contrast between white and black.
事实上蚊子是被白与黑的对比所吸引
Just because you wear white doesn’t mean you’re not going to get bitten by mosquitoes,
你穿白衣服并不意味着你不会被蚊子叮咬
but you’re just a little less likely to.
只是可能性变小了
– So there you have it.
-现在你应该明白了
If mosquitoes like your blood,
蚊子喜欢你的血液
it’s probably because you produce more CO2 than your friends.
可能是因为你产生的CO2比你朋友多
There’s nothing you could do about your blood type,
你无法改变你的血型
but you could coordinate the colors you wear
但你能搭配你衣着的颜色
and manage your sweat by staying in air conditioned areas or cooler spots.
呆在空调区或较冷的地方来控制出汗
And even though some studies report DEET being ineffective after a few hours,
一些研究报告说几个小时后避蚊胺将失效
make sure you carry your mosquito spray.
所以一定要确保你带了防蚊喷雾
After all, mosquitoes are the world’s deadliest animals.
毕竟 蚊子是世界上最致命的动物
(upbeat music)
(轻快的旋律)
Hay gays,thinks watching this week’s episode of the fact
大家好 谢谢观看本周的真相栏目
Hope you enjoyed,
希望你喜欢
if you did, make sure you hit the like button
如果你喜欢 请点个赞
and subscribe to our channel
并订阅我们的频道
Got weird about the science questions,
有好奇的科学问题
shoot your shot,drop a comment below.
动动你的手指 在屏幕下方留言
And who knows,we might cover it.
也许我们会把它做成一期节目
Be sure to catch more of the season every Tuesday.
记得每周二来看新节目

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视频概述

为什么一些人更容易被蚊子咬?这是有科学原因的。人体的温度,呼出的二氧化碳,不同的血型以及人身体的气味都是重要的因素。

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视频来源

https://www.youtube.com/watch?v=woA28HX17sQ

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