“A new Canadian study is painting a frightening picture of head injuries among teenagers, finding that serious blows to the brain are occurring more often than thought.

The study found that one in five teens in Ontario has had a concussion or another brain injury in their lifetime that was serious enough to leave them unconscious for five minutes or to send them to hospital overnight.

As well, a total of 5.6 per cent reported they had had a concussion or significant brain injury in the past year.” – read more

-source: CTV News