Why do mosquitoes bite some people more than others?

Why do mosquitoes bite some people more than others?

-Mosquitoes choose their victims on the basis of the amount of carbon dioxide (CO2) emitted by breathing and not, as popular belief, by the "sweetness" blood, as revealed in a study published recently in Nature. "

A human being produces approximately one kilogram of CO2 every day, and every time you exhale - about 13 times per minute - emits more than 100 milligrams of this gas. Mosquitoes detect a current pulse of CO2, which deduced that there is behind "fresh blood" to suck. “Issued by breathing carbon dioxide is higher in adults on children, and its amount varies depending on diet and exercise that will follow.

In fact, entomologists at the University of Florida (USA) have developed these insect traps that emit carbon dioxide as one would an animal or person.

-The lactic acid that we emit breath or sweat also attract these insects. The highest persons and pregnant women emit more lactic acid and CO2, so are "white" perfect mosquitoes. " People who just did intense physical exercise are also very attractive to insects.