A single heatwave in southern Australia once resulted in 437 deaths and seriously affected many thousands of people. Heatwaves Heatwaves are perhaps our most under-rated and least studied natural hazard. During the 20th century heatwaves have probably caused more deaths in Australia than any other natural hazard. Heat can also cause expensive livestock and crop losses as well as damage to roads, railways, bridges etc.
Every summer people suffer from heat stress when the body absorbs more heat than it can dispel.
Prompt action on your part will avoid the serious, or even fatal, consequences of fully-developed heat stroke. You should seek medical advice in all such cases. Avoid strenuous activities. Drink 2 to 3 litres of water per day, even if you aren't thirsty. Limit your intake of alcoholic and carbonated soft drinks.