The director of the Canadian Concussion Centre at Toronto Western Hospital says when it comes to the number of acknowledged concussions, you can usually double the total for athletes who participate in collision sports. That is not good news for Pittsburgh Penguins captain Sidney Crosby, who suffered what is believed to be the fourth concussion of his NHL career on Monday night. Neurosurgeon Dr. Charles Tator says when someone has suffered multiple concussions, the chance of having persisting symptoms “goes up terrifically.”

Source: thestar May 03, 2017 18:30 UTC