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This is Scientific Americans' 60-second science. I'm Erica Barris. Got a minute?

Babies benefit from breastfeeding. They have a lower risk of infections, vomiting, and diarrhea,

and less of a chance of later developing adult onset diabetes. And now a study finds that being

breastfed helps protect infants who are genetically predisposed to be at risk for asthma.

The work was recently presented at the European Respiratory Society's International Congress in London.

Researchers collected data from about 368 Swiss infants, such as the frequency and intensity of respiratory symptoms.

They also tracked whether the infants were breastfed,

and they performed genomic analysis of the children. The results, infants carrying genes that put them

at increased risk for asthma had a 27% decrease in developing respiratory symptoms while being

breastfed. The same children showed a trend toward the risk going back up

when they were not being breastfed. The study sheds light on the interactions between genes

and the environment when it comes to asthma. The researchers note that they need to replicate the

study in another group of infants to see if the findings hold. But if further work has a similar

outcome, it could lead to better ways to let affected

individuals breathe easier. Thanks for the minute. For Scientific Americans' 60 Second Science,

I'm Erica Barris.