Younger siblings seem to have an immune advantage as early as 1 month of age, which may help explain where they get the energy to tease older siblings. Rebecca Schortinghuis/Getty Images hide caption

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Which would you choose — a daily tablet or a trip to the doctor for an allergy shot? Eddie Lawrence/Dorling Kindersley/Getty Images hide caption

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Immunotherapy Tablets For Dust Mite Allergy Reduce Asthma Risk

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Aspirin Both Triggers And Treats An Often-Missed Disease

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When a baby is born by cesarean section, she misses out on Mom's microbes in the birth canal. Sarah Small/Getty Images hide caption

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Researchers Test Microbe Wipe To Promote Babies' Health After C-Sections

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Asthma is a big cause of school absences and can cause parents to miss work, too. AJPhoto/Science Source hide caption

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Childhood Asthma Rates Level Off, But Racial Disparities Remain

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The purple-stained Rothia dentocariosa bacteria are frequently found in the human mouth and respiratory tract. CDC hide caption

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Missing Microbes Provide Clues About Asthma Risk

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Ella Barnes-Williams visits the thrift shop associated with Martha's Table, a nonprofit social services organization in Washington, D.C. Anders Kelto/NPR hide caption

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When Life Overwhelms, This Group Lends A Healthy Hand

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Kids, Allergies And A Possible Downside To Squeaky Clean Dishes

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Dr. Stephen Teach helps Jeffery Ulmer listen to his daughter Alauna's asthmatic breathing at Children's National Medical Center in Washington, D.C. Alauna's mother, Farisa, holds her. The District has one of the highest rates of pediatric asthma in the country. Jahi Chikwendiu/Washington Post hide caption

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The City Might Not Be To Blame For High Asthma Rates

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Daniel Horowitz for NPR

The Power Of Suggestion Could Trigger Asthma — Or Treat It

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