Trauma can also result in the release of chemicals which are toxic to brain cells.

What ability the brain cell has to protect itself from these toxins, may also be reduced by the effects the trauma had to the physical structure of the cell.

Brain cells have protective coatings, much like the insulation on a wire or the paint on a car.
The concussions that disable, are almost always more symptomatic at 24 hours, than at the 2-4 hour time frame when injured persons are evaluated in the emergency room. Brain injury symptoms escalate over the first 24 hours, because brain injury involves a cascade of events. It is critical that if you are still symptomatic the day after your injury, go back to the same Emergency Room, don’t wait for a doctors appointment. It is critical that the Emergency Room personnel see that the symptoms still persist or have gotten worse.