Temperatures across BC are expected to soar this weekend.
Environment Canada has issued a heat warning for much of the province.
Interior Health says too much heat can be harmful to your health.
"Often heat related illness will start with the individual having very pale, cool and moist skin. They may be sweating heavily. They may experience muscle cramping, swelling, fatigue and weakness".
Doctor Sue Pollock says the symptoms can worsen if left untreated.
"As the illness increases in intensity, they may start experience things like confusion, disorientation, even hallucinations and this can lead to seizures and decreased consciousness."
Those most at risk of heat stroke are infants and children up to four years old and those 65 years of age and older.