B.C. paramedic warns about cold water shock and how to reduce the risk

A B.C. emergency health services paramedic is warning swimmers, boaters and other water users about cold water shock, a rapid reaction that can occur when someone suddenly enters water colder than 15 C. The condition can trigger gasping, hyperventilation and loss of coordination within minutes. Brian Twaites said the risk is especially relevant in British Columbia, where lakes, rivers and ocean waters can remain cold even in summer. He said cold water shock is different from hypothermia because it can become dangerous before the body has time to cool for a long period. Twaites advised people to wear a life jacket, keep their head above water and focus on breathing if they fall into cold water. He said it is important to stay calm and avoid wasting energy by trying to swim immediately.