(CNN) -- If you work out a lot, are pregnant or had something to drink at that backyard BBQ, mosquitoes might find you more attractive than the person sitting next to you.
Your blood type might also be the reason for the bites, according to research cited by Smithsonian.com.
The site pointed to one study that found mosquitoes landed on people with type O blood nearly twice as often as people with type A. Folks with type B reportedly fell somewhere in the middle.
It's reported that the reason mosquitoes find pregnant women and regular exercisers more attractive is because, in part, they have a higher body temperature.
The study also found that, yes, just one bottle or can of beer can also make you more attractive, though scientists haven't yet figured out why.
Smithsonian.com reported that ultimately, scientists said that an estimated 85-percent of the reason why mosquitoes find some people more attractive than others can be blamed on your genes and that's something you can do nothing about.
Lastly, what you wear might have something to do with it.
Smithsonian said not only are mosquitoes attracted to people with higher body temperatures and certain blood types, but also to people who wear certain colors like black, dark blue or red.
A medical entomologist at the University of Florida said colors that stand out attract mosquitoes because they use vision as well as scent to locate humans and those colors might just make you easier for them to find.