Young children and the elderly generally have worse outcomes from traumas
to the head as compared with young adults. In a moderate brain injury,
individuals may suffer memory loss, impaired cognitive function, mental
impairment, and impaired communication. In a severe brain injury, or TBI,
the person may be unresponsive to any kind of stimulation. All types of
brain injuries, including concussions, have the potential to lead to emotional
changes such as increased anxiety and depression.