Blood Type Plays a Role
Studies suggest that blood type influences mosquito preference. People with type O blood are bitten more often, while those with type A appear to attract fewer mosquitoes.
Some individuals also secrete chemical markers through their skin that make their blood type easier for mosquitoes to detect, increasing their appeal.
Sweat, Lactic Acid, and Physical Activity
Exercise makes people more attractive to mosquitoes. Sweating releases lactic acid, while increased body temperature and heavier breathing raise CO₂ output.
This combination creates a powerful signal, which is why mosquito bites often increase after workouts or outdoor activity.
Clothing Color Matters More Than You Think
Mosquitoes rely partly on vision. Dark colors such as black, navy, and red stand out more clearly, making people easier to spot.
Light-colored clothing reflects more light and tends to be less attractive, helping reduce visibility to mosquitoes.