INTERACTIVE: What are heat-related illnesses and how to protect yourself

According to the Sabah Health Department, in Malaysia, a heat wave is classified when the average daily maximum temperature exceeds 37°C for three consecutive days.

PETALING JAYA: From rashes and cramps to hyperventilation and delirium, long exposure to the current hot weather has a number of health risks.

Heat-related illnesses include a range of ailments from minor to major, with heat stroke being the most severe.