Helmet

While all team sports can be rough, hockey poses a particularly high risk of brain injuries. A new high-tech helmet is designed to warn of such injuries, by detecting and reporting on knocks to its wearer's head.

A team of scientists from Brigham Young University (BYU), Utah, has developed a smartfoam-based sensor system that could give NFL coaches the tools they need to catch concussions as they happen, and take appropriate action.