A blow or jolt to the head can disrupt the normal
function of the brain. Doctors often call this type
of brain injury a 'concussion' or a 'closed head
injury.' Doctors may describe these injuries as
'mild' because concussions are usually not life
threatening. Even so,the effects of a concussion
can be serious.
After a concussion,some people lose consciousness or are 'knocked out' for a short time, but not always - you can have a brain injury without losing consciousness. Some people are simply dazed or confused. Sometimes whiplash can cause a concussion.
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