Not every individual who has migraines will experience a headache when exposed to these triggers. If a person is unsure what his or her specific triggers might be, maintaining a headache diary can be beneficial to identify those individual factors which lead to migraine.
Football and ice hockey were the organized sports with the most concussion injuries, and snow skiing, bicycling, and playground injuries accounted for the most concussions occurring from non-team-related activities.
First discovered in 800 B.C. concussion, from the Latin word concussio, is one of the greatest causes of death among football players. They occur when the head is subject to a large impact force, resulting in a minor brain injury. The concern with concussions is not something that has recently been an issue.