With a growing database of over 150,000 brain scans, one of the biggest lessons Dr. Daniel Amen has learned in his work is that mild traumatic brain injuries can destroy lives, and people don't even recognize it. In this episode of the podcast, Dr. Amen and his wife Tana are joined by "Concussion Rescue" author Kabran Chapek of a discussion on how these brain injuries can occur, and why people tend to overlook them.