A number of epidemiological studies support a link between air quality and poor health outcomes, and researchers are searching for explanations in the lab.

Pregnant women who took a fish oil supplement during pregnancy were less likely to have children with asthma.

Byproducts of gut microbes in some 1-month–old babies trigger inflammation that is linked to later asthma development, researchers find.

The findings of a longitudinal study in New Zealand lend support to the hygiene hypothesis.

Four types of gut bacteria found in babies’ stool may help researchers predict the future development of asthma.

Kerry Grens chats about ancient tooth decay, asthma, and fat cells.

Scientists show that fiber’s influence on gut microbes affects the lungs’ response to allergens.

Nicotine leaves epigenetic marks on the rat genome that make offspring and grand-offspring more prone to asthma.  

Mice become immune to a virus associated with childhood asthma when exposed to dust from homes that have dogs.