For years, concussions were described as temporary disruptions in brain function that could not be seen on any medical test.

Athletes experiencing a concussion during a sports event are evaluated for return to play through clinical evaluation, without the need for imaging studies. We typically don't know with a high level ...

Ask 10 random people what a concussion is, and you’d probably get 10 answers. Despite all the recent attention, the injury still is referred to as getting “your bell rung,” “knocked out” or “dinged up ...