Genetics

Can stress in the womb lead to mental resilience later in life?

Maternal stress during or after pregnancy has been repeatedly associated with subsequent psychiatric problems and non-coding 'epigenetic' DNA changes during childhood. Animal studies, however, suggest that prenatal stress ...

Medical research

Mom's, not dad's, mitochondria create healthy embryos

Mammal embryos shed paternal mitochondria within days of fertilization, perhaps to ensure the offspring a healthy life, a new study shows. Researchers from the California Institute of Technology will present their findings ...

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