[Source: Peninsula Morning News] Summer is here. While enjoying "small beer and small barbecue", it also ushered in the season of "falling in love and killing each other" with mosquitoes. The puzzling question comes again: Why do mosquitoes always bite me? ? ? Are the “urban lege

[Source: Peninsula Morning News]

Summer is here,

while enjoying "small beer and small barbecue",

also ushered in the season of "falling in love and killing" mosquitoes.

That puzzling question comes again.

Why do mosquitoes always bite me? ? ?

Are the “urban legends” about mosquitoes true?

"O blood type is sweet and is most likely to attract mosquitoes"

"Type A blood is smelly and mosquitoes don't like it"

If you are bitten by a mosquito

Grandma will spit on it for you immediately:

"It will relieve the itching!"

Pinch Mosquito bags must be crossed

to "seal"

However

most of these statements are...

There is no scientific basis

• "Mosquito blood type theory" has no scientific basis

It affects the mosquito's "mouth", it's not Blood type but smell. Compared to identifying people's blood types, mosquitoes prefer cool guys in black clothes who sweat easily and like to spray perfume.

• Why does it itch when bitten by a mosquito?

This is because mosquitoes inject their "slobber" into our bodies when they bite.

When mosquito saliva containing anticoagulant and anesthetic ingredients is injected into the human body, the body will release histamine , causing mosquito pockets to form on the skin surface and causing an itchy feeling.

• It is true that the more you scratch a mosquito bag, the more itchy it becomes

Scratching a mosquito bag will stimulate the continuous secretion of histamine, making it more and more itchy.

• Applying saliva to mosquito bags cannot relieve itching

99% of human saliva is water. The effect of applying saliva and applying water is similar, and it has no real effect on relieving itching. (Tell grandma quickly)

• Is it useful to pinch the mosquito bag with a "cross"?

Yes, but not completely. Pinching the cross bun relies on the pain to suppress the itching, and it has a little effect for the time being

. However, pinching the skin and causing an infection is not worth the gain.

Who is the "walking meal" in the eyes of mosquitoes?

• People with a high proportion of carbon dioxide exhaled are more likely to be discovered by mosquitoes. Mosquitoes can sense such people from 50 meters away;

• People with a high basal metabolic rate and strong metabolism sweat more and are more attracted to mosquitoes;

• After drinking a lot of alcohol, especially after drinking beer, the sweat contains alcohol and acidic substances such as acetic acid formed by metabolism, which will also attract mosquitoes;

• Pregnant women have a higher metabolic rate, and overall they exhale 20% more carbon dioxide than normal people. , therefore attracting mosquitoes more;

• People wearing dark-colored clothes, such as black, purple, and bright red clothes, are more likely to attract mosquitoes.

What is the most effective way to prevent mosquitoes?

Source: People's Daily, CCTV.com

Editor: Fan Jinshi

Responsible editorial board member: Wang Jian Editor-in-Chief on duty: Zhang Li

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