You may be more attractive to mosquitoes because of a mix of body odor, carbon dioxide output, blood type, and how much you sweat or move around. People who breathe harder, exercise, or have certain skin-scent chemicals can draw more bites than others.

Why it happens

Mosquitoes use smell and carbon dioxide to find people, so someone with a stronger scent signature or heavier breathing can become an easier target. Research also suggests blood type may matter, with type O often attracting more attention than other types. Genetics may play a role too, which helps explain why some people are consistently “mosquito magnets”.

Things that increase bites

  • Exercising or being warm, which raises carbon dioxide and body heat.
  • Wearing scented lotions, perfumes, or fragranced soaps that can make you more noticeable.
  • Being outdoors at dawn or dusk, when mosquitoes are often most active.
  • Having more exposed skin, especially legs and ankles.

How to get bitten less

Use an EPA-approved repellent, wear long light-colored clothing, and avoid strongly scented personal-care products when you’re outside. A fan can also help because mosquitoes have a harder time flying in moving air. If you already have a bite, don’t scratch it; ice or an antihistamine cream can help with itching.

A simple way to think about it: mosquitoes are not picking you because you’re “sweet,” they’re reacting to a combination of scent, heat, and breath signals that make you easier to find.