- [[Diffuse axonal Injury]] (DAI) comes from shearing of axons. See a lot in [[TBI]] following a car crash. - Sheering can have consequences of cascading affect of neuronal death, leading to brain dysfunction. - Whiplash and sudden acceleration or deceleration are major causes of DAI - Axonal shearing tends to have chronic consequences. [[Pathophysiology of Traumatic Brain Injuries]]