concussion and who has not. This is a problem because if a player continues to play with a concussion they run the risk of making the injury worse from repeated blows to the head. Concussions can trigger a chemical chain reaction in brain that leaves an athlete disoriented, unconscious, or even dead. They can also impair learning over a period of years. More recent research is linking concussions to long term health issues such as dementia. "Josh came off the ice after a monstrous head-on collision at centre ice with a player much taller than him. He appeared alright and was keen to get back out for his next shift, so I let him go back out. That shift he got tripped and fell head first, hard into the boards. This time he came off the ice and vomited behind the bench. I then realized I should have had our trainer check him out after the previous hit." Dr. Montelpare: "Concussions are hard to notice, especially when players are not forthcoming with their symptoms. Many players are so eager to get back on the ice that they will lie about injuries. Do not fault yourself fully for his injury, you did the proper thing in checking up on him after the initial hit. He very well may have hit his head hard enough on the boards to induce the concussion. Next time if you are unsure don't hesitate to have your trainer asses the player to determine any injuries." It