A group of European researchers have discovered that early life traumatic events can alter a non-genetic mechanism governing gene expression in the sperm cells of adult mice. The idea that altered gene expression can be passed down is controversial People who experience early childhood trauma, like abuse or war, often exhibit a number of hormonal imbalances. The mechanisms involved are poorly understood, but most scientists agree that traumatic events alter gene expression, which then causes misregulations in a number of biological processes.
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