There are several reasons why some people get bitten by mosquitoes more than others. Here are the key factors:
Blood type: People with Type O blood are more likely to get bitten by mosquitoes, according to research. A recent study also showed that people with Type B blood attract Anopheles stephensi mosquitoes.
Body odor: Mosquitoes are attracted to certain body odors. When you sweat, your body gives off chemicals, including carboxylic acid and ammonia. Each person releases a different amount of these chemicals, and some people give off just the right amount to create an irresistible perfume that attracts mosquitoes.
Skin's microbiome: The skin's microbiome may also add to the appealing smell some people give off. However, there's no evidence that you can change your skin's microbiome to deter mosquitoes.
Diet: While your diet doesn't significantly affect how likely you are to get bitten by mosquitoes, beer and bananas may make you more attractive to them. A small study showed that drinking beer makes you more likely to attract mosquitoes, and another small study suggests that eating bananas makes you more attractive to mosquitoes.
Clothing color: Mosquitoes are more attracted to people wearing darker colors, especially orange and red. Lighter colors, especially light blue and green, seem to attract less attention from mosquitoes.
Heat and carbon dioxide: Mosquitoes are more active during certain times of the day, such as the hours right before sunset and early morning before the sun rises. They use thermal receptors that track the heat and carbon dioxide you give off as you breathe. When you exercise or exert yourself, you give off even more heat and carbon dioxide, making you more attractive to mosquitoes.
Pregnancy: Pregnant women are more likely to attract mosquitoes due to increased metabolism, which results in more carbon dioxide and heat production.
To avoid mosquito bites, you can take several steps, such as wearing long sleeves and pants, using mosquito repellent with DEET, and avoiding peak feeding times.