The source explains that aggression in older adults stems from brain changes: atrophy of the prefrontal cortex that normally brakes impulses, white matter degeneration that cuts communication between reason and the amygdala, and declining serotonin. It also warns that extreme personality change can signal frontotemporal dementia or vascular damage from blocked micro-vessels, and concludes such aggression is a brain malfunction, not bad character.
자막
Sudden anger in old age is a brain signal The frontal brain ages first and fastest The brake pads wear thin Impulse arrives before control White matter: the brain's road network The calming signal never arrives Less serotonin, no cushion left Personality changes before memory does Silent strokes erode self-control Not defiance — a failing brake