@musiclady
Are you a military doctor or nurse? No,you are not,or you would know a concussion/TBI is not considered to be a wound. YOU and those like you are the ones that need to be apologizing.
Yes it is considered a serious injury. You may not call it wound being it is not open injury but injury it is. it can be very serious and is recognized by the Military as a injury, potentially serious with serious possible disability.
Severe TBI
This injury usually results from a significant closed head injury, as in an automobile accident or most open or penetrating injuries, where there may be considerable residual deficits of brain function.
Depending on the injury, a severe TBI could impact speech, sensory, vision and cognitive deficits including difficulties with attention, memory, concentration, and impulsiveness.
What are the Consequences of TBI?
TBI can cause a number of difficulties for the person who is injured. This can include physical changes, changes in behavior, or problems with thinking skills.
After an injury, a number of symptoms might be noted including headaches, dizziness/problems walking, fatigue, irritability, memory problems and problems paying attention.
These symptoms are often related to how severe the brain injury was at the time of injury, but there is much that is not understood, and this isn't always the case. Every person is different.
https://www.military.com/benefits/veterans-health-care/traumatic-brain-injury-overview.htmlThose look like things that could cause permanent disability if the injury is severe.