| 1 | Sam: No, it's about the link between brain damage and football. | |
| 2 | Scientists have been researching on / into the causes of brain damage. | |
| 3 | Distortion of balance is often a consequence of traumatic brain injury. | |
| 4 | The syndrome is often misdiagnosed as coma and severe brain damage. | |
| 5 | Aside from headaches, he showed no signs of lasting brain damage. |