Source+1

Strickland, Tony. __Sports Concussion Institute __. 2012 Sports Concussion Institute. August 12, 2012 .

1. A concussion is cause my a hard hit or blow to the head. 2. 78% of concussions happens during games. 3. 47% of people did not report any side affects after receiving a blow. 4. There is at least 1.6 million concussions per year. 5. During an concussion your brain goes into a shock and the brain moves around causing an concussion. 6. Adult brain is about 3 pounds and is surrounded by a fluid substance so when you receive an concussion its messes up the substance. 7. 53% of players receive an concussion before they play in high school. 8. Neuropychological testing is test doctors use to measure cognitive functions after an concussions. 9. The more concussions you have had the high risk you will keep getting them if you stay with that sport. 10. 5-10% chance that you will receive an concussion playing any sport. 11. A concussion can change the way your brain works. 12.Since concussions are brain injuries, you must heal up 100% 13. Concussion symptoms maybe be emotional.
 * __FACTS__**

14. Look very drowsy or cannot be awakened 15. Have one pupil (the black part in the middle of the eye)