Why do midges bite some people and not others?

Midges are attracted to certain individuals due to factors like body heat, carbon dioxide production, and skin chemicals such as lactic acid and ammonia. Genetics also play a role, as some people naturally emit more of these attractants than others. Additionally, factors like clothing color, the presence of perfume, and even diet can influence a person's attractiveness to midges. As a result, some individuals may experience more bites than others.