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The Effects of Early Childhood Stress on Epigenetic Changes
Neuroscientist David Moore writes that this conclusion is supported by a study of rat pups whose mothers were so stressed out that they treated their newborns abusively. As a result, the offspring grew up to have altered patterns of methylation in their brains. Another study found a relationship between poverty in the first five years you've lived and epigenetic changes 20 to 35 years later. It makes complete sense that animals and humans from more stressful early infant environments display high stress responses later in life.