What you need to know about kids and concussions

RICHMOND, Va. -- An expert on concussions will host a Facebook LIVE session Wednesday afternoon. Dr. David Cifu, the chairman of the Department of Physical Medicine and Rehabilitation at VCU, will answer questions on concussions and school sports.

Dr. David Cifu is also the principle investigator on a $62.2 million federal grant studying the impact of concussions on the brain.

Concussions are a traumatic brain injury caused by a bump, blow, or jolt to the head, or a penetrating head injury that disrupts the normal function of the brain.

Concussions are a frequent concern for anyone playing sports, including children and teenagers who participate in school sports.

Dr. Cifu is leading a study with researchers from multiple universities, military installations and veterans hospitals.

Their study is focused on mild brain injuries sustained in sports and in military combat.

During the chat, Dr. Cifu will answer questions about how to prevent, diagnose and treat concussions.

The discussion will be streamed live on Facebook, and questions can be submitted on Twitter using #VCUHealthChat.