So the severity of a MTBI has been discussed in great detail thus far in the aspect that it can alter a person’s life for the negative. The physiological effects, as well as the determining criteria have also been explained, but what are these effects that have been alluded to throughout this paper? Well a MTBI can have a profound effect on an individual’s cognitive functioning for up to thirty days. This though is just for an individual who has no previous history of MTBI. Those individuals that have in fact suffered the effects of multiple MTBI spread throughout a lifetime have a greater chance of complications.