The mechanism of brain injury is complex and depending on the given scenario that leads to a traumatic brain injury, different brain regions are affected yielding different sets of possible symptoms. The regions affected cannot be predicted by simply locating the point of impact for the coup injury and the side opposite the area that was hit for the contrecoup injury. The resulting symptoms will also depend on subsequent head rotation, acceleration and deceleration and whether any protective gear was utilized. Computational simulations offer a unique view of what exactly is happening inside a human skull when exposed to external forces. Moreover, athletes tend to neglect reporting symptoms for various reasons, e.g. not thinking the injury is serious enough to need medical attention, the need to remain in competition, and/or lack of awareness of what to consider as a symptom. This discussion is appropriate for both practitioners as well as undergraduate Engineering students.

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