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Sperm cells carry traces of childhood stress, epigenetic study finds

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Study looked at the "epigenetics" of sperm cells of fathers who had been exposed to high stress in childhood.

Epigenetics involves how DNA — the blueprint used to build the proteins and molecules that make up our bodies — is read.

It doesn't change DNA's underlying code but rather alters which genes can be switched on.

The research adds to a growing body of research investigating whether life experiences can be passed on to future generations.

Jenner said it would be good for the study to be repeated with a bigger sample.

Jenner said some factors, like the men's range of ages and diets, could have muddled the results.

We can only speculate about whether this information could be used to improve the health of a child whose parent was exposed to childhood stress.

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