Whats a concussion?
When a closed-head injury — meaning one in which no object penetrates the skull — causes a change in the normal functioning of the brain, it’s called a concussion. The injury might be from a violent blow, a fall, or a severe shaking. A child with a concussion may lose consciousness or have problems with his vision, memory, or balance. This sounds scary, but in most cases the effects are minor and temporary and the child recovers completely.