Warning signs of concussion:

It's your head-don't knock it, only cartoon characters don't get hurt from a bump on the head. For the rest of us, concussions can result when we sustain a blow to the head or neck. A concussion is a temporary disturbance of brain function that can result in serious brain injury.

Don't mess with your brain. If someone suffers a head injury, watch for the warning signs of concussion.

• Partial or complete loss of consciousness
• Shallow breathing
• Nausea or vomiting
• Casualty 'sees stars'
• Loss of memory of immediate past event

Concussions can have hidden risks. A casualty may appear to have recovered quickly, but could be suffering from a more serious injury, such as compression.

It is always important to seek immediate medical help.

Article courtesy of Saint John Ambulance, Canada.

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