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It Takes a Genome: How a Clash Between Our Genes and Modern Life Is Making Us Sick by Greg Gibson

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Asthma Epidemiology

What are the environmental factors influencing asthma prevalence? The distribution of asthma is remarkably inverse to that of diabetes. In the United States, levels are twice as high in the Northeast, Midwest, and Northwest, as they are in Texas and Louisiana, and they are intermediate along the Atlantic coast. An anomaly is Puerto Rico, where 1 in 5 kids are asthmatic, even though Hispanics as an ethnic group tend to have a lower prevalence than Caucasian and African Americans.

This geographic trend is not, however, reflected in measures of education and affluence. In just about every state in the Union, high school graduates have lower rates of asthma than those who drop out, while college graduates have significantly lower ...

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