What are the major effects of tbi?

Wide range of effect. Severe tbi can have major effects with up to a 40 % mortality. However, the more common mild tbi may have more mild effects which may still be disconcerting to the patient. These include headache, nausea/vomiting, trouble with thinking/focusing, balance problems, blurred/double vision, ringing in the ears. New studies with MRI scans are showing subtle bruises that previously were undetected.
Head injury. Brain trauma can cause problems with memory, focus, concentration, organizational skills, ability to do mathmatical calculations, and judgement. Emotional associations include anxiety, panic attacks, depression, etc.