sciencehabit writes "A new study reveals that people who grow up in more rural environments are less likely to develop allergies. The reason may be that environments rich with species harbor more friendly microbes, which colonize our bodies and protect against inflammatory disorders." From the article: "To test whether or not biodiversity does indeed create a shield against such conditions, the team investigated the microbial diversity of 118 teenagers. The study participants, who had lived in the same houses their whole lives, were chosen at random from a 100-by-150-kilometer block in eastern Finland. Some kids lived on rural, isolated farms, while others lived in larger towns. ... surveyed all of the types of plants growing around the adolescents' homes. The participants were part of a separate long-term allergy study, so the researchers took advantage of that data to investigate the connection between biodiversity and allergies. ... Whether there is just something special about Finland's native plants or whether this finding can be applied around the world is still an open question, Hanski says. 'Many research groups worldwide could easily attain these data from their study populations, and then we'd know how general these results might be.'"
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