Heat wave: what is a « heat stroke »?

Heat stroke occurs during significant rises in temperature, such as those suffered by the French for a few days. Headaches, nausea, vomiting, if not caught in time, heat stroke can be fatal.
Fr1
Heat stroke occurs during significant rises in temperature, such as those suffered by the French for a few days. Headaches, nausea, vomiting, if not caught in time, heat stroke can be fatal.
Fr1