Ever come back from a camping trip covered in red welts, while your companions’ limbs remained blissfully bite-free?

It’s not just all in your head: Researchers find that mosquitoes may like to gnaw on certain individuals more than others, including pregnant women, sweaty people, those with blood type O, and even beer drinkers.

To find out if you're more at risk for becoming an insect’s snack than other outdoor enthusiasts, check out Tech Insider’s video below.