Mosquitoes like Type O blood
If you find yourself scratching bug bites all summer long, your blood type might be to blame. Type Os are as much as twice as attractive to mosquitoes as type As, with type Bs falling in the middle. In addition, 85% of people secrete a substance that”broadcasts” their blood type to mosquitoes. Those little blood-suckers are far more attracted to those people, no matter what their blood type is.