Mosquitoes, those nasty tiny bloodsuckers, prefer to bite certain people over others. Have you ever itched thousands of bites while your friend sits nearby unharmed? Scientists have long been interested in the topic of mosquito preference, and while there is no definite answer, several aspects provide insight into why these insects appear to prefer certain individuals over others.
Here are some reasons mosquitoes bite some people more than others:
-
Carbon dioxide, heat and fragrances
Mosquitoes are attracted to carbon dioxide (CO2) and heat, which our bodies release. Individuals that emit more CO2 or have greater body temperatures are more prone to attract mosquitos. This explains why physical exercise, pregnancy, and even some hereditary traits can make people more vulnerable to mosquito bites. Furthermore, mosquitos are attracted to specific fragrances emitted by human skin, such as sweat and lactic acid. People with a high concentration of these compounds on their skin may become mosquito magnets.
-
Blood types and genes
Furthermore, blood type influences mosquito attraction. According to studies, those with Type O blood are more likely to be bitten than those with Type A or Type B blood. People with Type O blood are thought to possess a fragrance that mosquitos find especially appealing. Furthermore, genetic factors modify the chemical composition of our skin, making some people more attractive to mosquitos than others.
-
Environmental factors
However, not only our biology influences mosquito preference; environmental factors also play an important role. Mosquitos breed in stagnant water; thus, living near bodies of water or humid conditions enhances your chances of encountering these pests. Additionally, wearing dark-coloured clothing can make you more noticeable to mosquitoes, who use visual cues to locate their targets.
What can you do to protect yourself from mosquito bites?
-
Use insect repellent
Look for repellents containing DEET, Picaridin, IR3535, or lemon eucalyptus oil. Apply according to the instructions and reapply as needed, especially after sweating or swimming.
-
Wear protective clothing
When spending time outside, wear long sleeves, pants, and socks, especially at dawn and evening, when mosquitoes are at their peak.
-
Avoid peak mosquito hours
Mosquitoes are most active at dawn and dusk, so outdoor activity is restricted. If you must exert yourself, reapply repellent more frequently.
-
Eliminate standing water
Mosquitoes develop in stagnant water; therefore, routinely emptying containers such as flowerpots, bird baths, and gutters can help reduce mosquito populations in your home.
-
Use mosquito nets
If you’re sleeping outdoors or in an area with a high mosquito population, use mosquito nets around your bed to prevent bites while you sleep.
-
Install screens
Make sure your windows and doors have screens to keep mosquitoes out.
-
Consider mosquito-repelling plants
Citronella, lavender, and marigolds are natural mosquito repellents that can be planted around your home to keep these pests away.
If you do get bitten, resist the urge to scratch! This can worsen the irritation and increase the risk of infection. Try applying calamine lotion or a cool compress to reduce itching. In some cases, oral antihistamines might be helpful. If the bites become swollen or painful or show signs of infection, consult a doctor.
