Ask Smithsonian: What Happens When You Get a Concussion?
We all know concussions are a bad thing, but have you ever wondered exactly what happens to your brain when it gets knocked around? In this one-minute video, Ask Smithsonian host Eric Schulze takes a few whacks to the head in the name of science. (Disclaimer: No brains were harmed during the making of this video.) (1:13)