Have you ever noticed that mosquitoes seem to swarm around one person while barely bothering someone standing right beside them? Although it may feel like mosquitoes have a “favorite person,” researchers have identified several factors that can influence who gets bitten more often.
Blood Type May Play a Role
Some studies suggest that mosquitoes may be more attracted to people with certain blood types. Research has indicated that individuals with Type O blood may receive more mosquito bites than those with Type A, while Type B may fall somewhere in between. However, blood type is only one factor among many.
Your body chemistry matters.
Mosquitoes rely heavily on smell. They are attracted by substances naturally released through the skin, including:
Lactic acid
Ammonia
Certain fatty acids
Other natural skin compounds
Because every person’s skin chemistry is unique, mosquitoes may respond differently to different individuals.
Carbon Dioxide Attracts Mosquitoes
Mosquitoes can detect carbon dioxide from surprisingly long distances.
People who produce more carbon dioxide often include:
Adults compared with children
Taller individuals
People exercising outdoors
Pregnant women
This doesn’t guarantee more bites, but it can increase the chances of attracting mosquitoes.
Body Heat and Sweat
Mosquitoes are also attracted to warmth and moisture.
After physical activity, your body may produce:
More heat
More sweat
Higher levels of lactic acid
These signals can make it easier for mosquitoes to locate you.
