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.
Definition of a Concussion. Concussion is a serious brain injury that can occur in both non-contact and contact sports. This injury results from the rapid translational (linear front-to-back, side-to-side) or rotational (angular) movement of the multi-lobular brain within the skull.