Dangerously high heat to build over Ontario, Quebec this week – The Weather Network

Folks who are highly susceptible to the heat include those in homes without air conditioning, elderly people, unhoused people, outdoor workers, those living with chronic health conditions, and folks taking certain medications.

Check on vulnerable friends, family, and neighbours over the coming week. Stay alert for the signs of heat-related illnesses.

MUST SEE: Heat emergencies: How to spot them and what to do

Heat exhaustion occurs when a person’s body temperature climbs too high and they struggle to cool off. Symptoms of heat exhaustion include dizziness, excessive sweating, and weakness. Developing heat exhaustion is a serious sign that your body is in distress and you need to find a way to cool off immediately.

Heat stroke is a life-threatening medical emergency that occurs when a person’s body temperature is so high that their vital systems begin to shut down.

During heat stroke, sweat production stops and body temperatures soar very quickly. A victim suffering from heat stroke may exhibit confusion and loss of consciousness. Heat stroke can be fatal if not treated immediately.

Why heat waves aren’t ‘just summer weather’

The risk for heat-related illnesses will sharply increase during this upcoming heat wave as a result of the expected duration of hot temperatures and high humidity.