Why Some People Attract More Mosquitoes Than Others

Attractiveness to mosquitoes varies among individuals, not all of whom are equally appealing to the thirsty pests. Body heat, carbon dioxide emissions, the composition of the sweat and the bacteria on the skin can all make certain people more attractive to the insects. Such as: People who emit naturally higher levels of carbon dioxide or who are warmer-blooded tend to draw mosquitoes from farther away. And compounds such as lactic acid in sweat can serve as a powerful lure, too.

Genetics likewise have an influence on which people mosquitoes target. There are those who naturally emit odors that are more palatable — or less detectable — to mosquitoes, and deeper studies have found that what you eat and if you exercise regularly can play roles as well. Both diet and alcohol consumption can alter the compounds that people release from their skin, which indirectly impact mosquito attractiveness.

Expert says figuring out why mosquitoes seem to like certain people can help steer prevention efforts. People who are more attractive to mosquitoes might need additional protection — like repellents, long-sleeve shirts and maintaining pest-free living spaces by eliminating stagnant water. By piling personal and environmental protections on top of one another, everyone can lower the risk of bites, regardless of natural mosquito “beauty.”