Each year millions of people suffer concussions, but many still don’t know just how prevalent they are.
The University of Pittsburgh’s School of Medicine reports that 50% of concussions go unreported or undetected.
The Centers for Disease Control and Prevention defines a concussion as a type of traumatic brain injury caused by a bump, blow or jolt to the head or body.
Newsy's Lindsey Theis spoke to experts to understand the science, symptoms and causes of a concussion.
