Former NFL quarterback Brett Favre revealed that he'd be open to having his brain be donated for CTE research.

A concussion is a mild traumatic brain injury caused by a sudden hit, jolt, or impact on the head or body, leading to rapid movement of the brain inside the skull.

In an effort to reduce concussions among players, the NFL is teaming up with helmet manufacturers to create safer equipment.

For four seasons, 98 NFL players volunteered mouth guard sensors that recorded data about their head movements. Their ...