Amygdala under the magnifying glass of epigenetic inheritance
How do you react to life’s difficulties? Through the anti-stress resourcesexternal or internal, that each of us subjectively possesses. And, according to Washington scientists, based on heredity.
chronic stress
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The study conducted by Marcus Raichlepublished on PNAStalk about chronic stressdue to a low income and a marginalized socio-cultural environment, which mothers pass on to the children they carry in their womb. By monitoring brain activity during sleep 261 healthy newbornsvia functional magnetic resonance imaging, was found a functional alteration of the amygdalaalthough the latter is not anatomically normal. The result is a projection of potential problems in behavioral adaptation: at school, in relationships and at work.
Epigenetic inheritance
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The American study joins what has already emerged in the past onepigenetic inheritance. The latter was discovered in the 1900s by the biologist Ernest Everett Justof the University of Chicago, who identified a more labile transmission, compared to the genetic one that passes through DNA. According to the researcher, epigenetic inheritance passes for a limited period of time, through the more labile RNA. To prove it, an alteration in the production of cortisol. Since then, numerous studies have focused on generational stress and trauma.
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