In Canada, wildfire season occurs between April and October each year and can coincide with periods of extreme heat. It is important to know how to protect your health when exposed to wildfire smoke and extreme heat together, as they can both harm your health. This guide will provide information on how to recognize sings and symptoms of heat-realted illness and wilfire smoke exposure and how to protect yourself. When there is an extreme heat event occurring with wildfire smoke, prioritize keeping cool, because overheating can be more dangerous to your health.