Why do bed bugs bite some people and not others? is an important question for anyone who has ever been bitten by these pests. Bed bugs are small, parasitic insects that feed on human blood. They are typically active at night and will bite people who are sleeping. While some people are bitten by bed bugs multiple times, others may never be bitten at all. There are a number of factors that can contribute to why some people are more likely to be bitten by bed bugs than others.
One factor is blood type. Bed bugs are more attracted to people with certain blood types, such as Type O blood. People with higher levels of certain chemicals in their blood, such as histamine, are also more likely to be bitten by bed bugs. Additionally, people who are pregnant or menstruating may be more likely to be bitten, as their hormonal changes can make them more attractive to bed bugs.