From WIKI: “Concussion, from the Latin concutere (“to shake violently”) or concussus (“action of striking together”), is the most common type of traumatic brain injury. The terms mild brain injury, mild traumatic brain injury (MTBI), mild head injury (MHI), minor head trauma, and concussion may be used interchangeably, although the last is often treated as a narrower category.”

Read more: https://en.wikipedia.org/wiki/Concussion

 

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Resources

How to detect – a good guide re danger signs: http://www.cdc.gov/headsup/basics/concussion_danger_signs.html

Concussion (disambiguation) https://en.wikipedia.org/wiki/Concussion_(disambiguation)

Have you ever reeled from a head injury or trauma?
Have you ever reeled from a head injury or trauma?