How farm life can prevent allergies
Component of dairy dust turns on anti-inflammatory enzyme in mouse lungs
![Cows in a field](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/09/090315_mr_farmdust_free.jpg?fit=860%2C460&ssl=1)
SMELL THAT Breathing in dust from dairy farms could protect kids from developing allergies and asthma. Dried-up cow manure could harbor the bits of bacteria that tell lung cells to calm down when faced with allergens.
Geraint Rowland/Flickr (CC BY-NC 2.0)