Getting antibiotics as a baby may have lasting effects on brain, behavior

Banishing bacteria from the body with antibiotics around birth may cause haywire signals in the brain and lasting behavioral changes, a series of studies suggests.

In the latest study, involving only mice, researchers found that low doses of penicillin given to pups before and after birth spurred changes in their blood-brain barrier and brain chemistry. The mice grew up to be more aggressive and have impaired social behavior, researchers reported Monday in Nature Communications.


Want to receive more content like this in your inbox?