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 ...

South Africa ’s star forward Eben Etzebeth has suffered a return of concussion symptoms and been sent to specialists, ruling ...

The family of former NFL star Conrad Dobler, also known as “the NFL’s Dirtiest Player” announced that he suffered from ...

Jim Tyrer killed his wife, then turned the gun on himself in 1980 — he's largely considered one of the league's first cases ...

Conrad Dobler, a former offensive lineman in the NFL, was diagnosed with chronic traumatic encephalopathy, or C.T.E. after he ...

Brad Tyrer, of Louisville watched his dad become a legend in the NFL — a six-time first team All Pro with the Kansas City ...

The Athletic spoke to Walsh as well as players around the league ahead of a new round of CBA talks between the NHLPA and NHL.

One of the NFL's most influential agents for years, Leigh Steinberg is now aiming to support emerging approaches for head ...

Experts say the gunman’s brain tissue points to traumatic injury ‘likely’ caused by blasts in the line of duty; the Army ...

Because it can only be diagnosed with an autopsy, the neurodegenerative disease is difficult to pin in cases of professional ...