1998 Canadian Ice Storm Imprinted in Babies' Genes

It's all thanks to the magic of epigenetics. There is also a correlation with subjective measures of stress, but not in the genome itself.

By looking at the DNA methylation patterns in these kids, the authors found that the mothers’ elevated stress levels during the 1998 ice storm was correlated with specific DNA methylation pattern in 957 of the kids’ genes. These genes are predominantly related to immune function.