Is it possible that you fear something for no other reason beyond that your grandfather feared it as well?
A new study published in Nature Neuroscience has shown that rats taught to fear a certain smell could pass that fear onto their offspring.
Marcus Pembrey, emeritus professor of paediatric genetics, says it has implications for our understanding of the “nature versus nurture” debate.
Prof Pembrey told the Today programme “sperm can carry information about the ancestral environment or experiences, in this case the conditioning shocks of the grandfather.”
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