Yelling Isn’t Just Yelling: How a Hostile Home Rewires a Child’s Brain for Constant Alert To a parent in the heat of the moment, a raised voice may feel like simple frustration. To a child listening nearby, it registers as something far more primal. It signals imminent danger. New research shows that chronic hostility at home does not toughen up a child. It physically reshapes the brain’s threat-detection circuitry. The result looks identical in key ways to patterns seen in combat soldiers.

New UCL fMRI research proves chronic shouting & hostile homes physically rewire a child’s brain. The amygdala stays on permanent high alert identical to soldiers with PTSD. 😱
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