Seven types of people are most attractive to mosquitoes in summer. Check these points and see if you are "infected"?

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Summer is just around the corner, and the peak period of mosquito activity is getting closer.

Why do mosquitoes always like to bite one person in the same space? Check the following points to see if they apply to you:

1. People who sweat a lot. Human sweat contains a lot of amino acids, lactic acid and ammonia compounds, which mosquitoes are very sensitive to. Once they smell the odor of these substances, their appetite will be stimulated.

2. Those with a strong milk smell. Babies are easily attacked by mosquitoes for two reasons: First, babies have no defense ability, so mosquitoes are more likely to bite them. Second, babies have a strong and fragrant milk smell, and mosquitoes will be attracted by the milk smell and bite them.

3. Wearing dark clothes. Mosquitoes prefer to suck blood in low light conditions. Dark clothes can provide good cover for mosquitoes. Dark clothes have a strong ability to absorb heat. Mosquitoes like to bite people with higher body temperatures, which increases the chances of people wearing dark clothes being bitten.

4. People with high body temperature and high exhalation of carbon dioxide. There is a heat receptor in the antennae of mosquitoes, which is very sensitive to temperature. It can lock on to the "target" through its antennae from 50 meters away. Therefore, people with a strong physique and easy sweating are more attractive to mosquitoes; in addition, after exercise, people exhale more carbon dioxide, and the concentration of carbon dioxide in the environment is relatively high, and mosquitoes that are sensitive to this will smell it and come.

5. Pregnant women. Studies have shown that pregnant women are twice as likely to be bitten by mosquitoes as other women. This is because the air they exhale contains a variety of chemicals that attract mosquitoes, and their abdominal temperature is higher, so there are more volatile substances on their skin surface.

6. Drinkers are also more likely to attract mosquitoes. Studies have found that drinking one or two beers outdoors will increase the chance of being bitten by mosquitoes by 15%. Scientists have analyzed that changes in body odor and breathing after drinking will make people more likely to attract mosquitoes, and drinking will reduce the body's ability to defend against mosquito bites;

7. People who wear makeup are more likely to attract mosquitoes than those who don't. Studies have found that many cosmetics such as hair spray, hand cream, and facial cleanser have special smells that are very attractive to mosquitoes.

The main ways to repel mosquitoes at home are mosquito coils or sprays. Merchants have produced various forms of mosquito coils, from the original mosquito coils that need to be ignited, to electric mosquito coils, and now electric mosquito coil liquids. At the same time, more and more people are using floral water to refresh themselves and repel mosquitoes.

Why do mosquito repellent and toilet water belong to the category of pesticides?

The mosquito repellent and toilet water sprayed on the body or in the house mainly use DEET and pyrethroids as effective substances to repel mosquitoes. These two substances are regulated by the Ministry of Agriculture in China, so some people will see the "Pesticide Registration Certificate Number" logo.

DEET can evaporate around the skin. It interferes with the chemical sensors on the antennae of mosquitoes and other insects by forming a vapor barrier, making it impossible for mosquitoes to respond to volatile substances on the human body surface, thereby achieving the purpose of preventing people from being bitten by mosquitoes and other insects.

DEET is indeed slightly toxic, and its side effects are absorbed through the skin into the blood, which is irritating to the eyes. However, for adults, it is not a big deal during use as long as it is not accidentally ingested, but it may cause skin allergies in sensitive people. The toxicity of chlorpyrifos is lower than that of DEET, and it has no obvious harm to human skin or the environment.

For children, attention should be paid to the concentration and frequency of use, and infants under 2 months old should avoid using DEET products. Compared with DEET, picric acid is less toxic and has a better repellent effect, and no toxic reactions have been found so far.

How to use mosquito coils correctly?

Yuan Haibin, deputy dean of the College of Agriculture at Jilin Agricultural University, said that no matter what type of mosquito coil, they basically contain low-toxic pyrethroid pesticides, which are the active ingredients of household insecticides. If exposed for a long time, it can cause dizziness, headaches, paresthesias and even nerve paralysis. When choosing mosquito coil liquid, be sure to check whether the product packaging has the pesticide registration number and production approval certificate.

Mosquito coils are more effective and faster in repelling mosquitoes, so it is important to master the time and method of use.

1. Best time: The best time to light mosquito coils is not when you go to bed, but in the evening, because mosquitoes are most active at this time and it is also easiest to drive them out of the room.

2. Best method: Light up the mosquito coils and place them in a well-ventilated place, such as at the door or window sill. It is best to use one (or one plate) at a time. After lighting, it is best to leave the room. For safety, you can put the lit mosquito coils in a porcelain plate to prevent them from being blown down by the wind and causing a fire. After entering the room, be sure to open the doors and windows for ventilation.

Is it still the healthiest to use "physical methods" to repel mosquitoes?

Everyone should do the following:

1. Take a bath frequently to keep your skin clean and wipe off sweat in time when you sweat.

2. Use mosquito nets, screens, etc. to repel mosquitoes indoors.

3. Wear long-sleeved clothes and socks outdoors, and light-colored clothes are best.