You’re outside with friends, enjoying a warm summer evening. Everyone’s relaxed—except you, furiously scratching fresh mosquito bites. Meanwhile, your neighbor hasn’t been touched. Why does it always happen to you? Is it your blood, your smell, or just bad luck? Not exactly. Mosquitoes follow a clear logic when choosing their targets. The good news? Once you understand their preferences, you can outsmart them.

What Attracts Mosquitoes to You

1. Blood Type Preferences

Not all blood types are equally attractive. Research shows mosquitoes prefer blood type O, followed by type AB. If you’re among the 80% of people who secrete blood type markers through your skin, you’re even more likely to be targeted.

2. Carbon Dioxide (Your Breath)

Mosquitoes can detect carbon dioxide from as far as 50 meters away. The taller you are—or the more active and out of breath—you get, the more CO₂ you release. For them, it’s like seeing a giant neon sign that says “buffet open.”

3. Body Heat

Warm skin is another invitation. That’s why mosquitoes often bite around your legs, ankles, or head. Physical activity or simply being outdoors on a hot day makes you far more attractive to them.