Overview

It is the traumatic injury to the brain as a result of a violent blow, shaking, or spinning. A brain concussion cans cause immediate and usually temporary impairment of brain function such as of thinking, vision, equilibrium and consciousness.

Although anyone can have a concussion, we will focus here purely for purposes of example on athletes who suffer a concussion. The considerations can be generalized to the general population of people with concussions of the brain.
Objective signs of concussion:

The signs of concussion observed by medical staff in athletes with a concussion, according to The American Medical Association (AMA), include the following:

*) Player appears dazed

*) Player has vacant facial expression

*) Confusion about assignment

*) Athlete forgets plays

*) Disorientation to game or score

*) Inappropriate emotional reaction

*) Player displays clumsiness

*) Player is slow to answer questions

*) Loss of consciousness

*) Any change in typical behavior