Thirty years after scientists coined the term “hygiene hypothesis” to suggest that increased exposure to microorganisms could benefit health, CU Boulder researchers have identified an anti-i... Read more
The death of important gut-dwelling parasites that we co-evolved with may be causing the rise in food allergies and other diseases. Now scientists are working on finding ways to have us and... Read more
Researchers once blamed a cleaner world. Now they are not so sure. Asthma rates have been surging around the globe over the past three decades, and for a long time researchers thought they h... Read more