It is truly hot these days.

The daytime high in Yangsan, Gyeongsangnam-do, reached 42°C (108°F), breaking record highs, and extreme heatwaves continue nationwide.

However, it is said that when temperatures exceed 40°C (104°F), electric fans can actually worsen the heat.

Let us take a look at the World Health Organization's (WHO) recommendations.

First, the WHO emphasized that electric fans should only be used when temperatures are below 40°C (104°F).

While fan breezes cool the body by promoting the evaporation of sweat, once the air temperature exceeds skin temperature, the fan blows hot air instead, which can actually raise body temperature.

Drinking enough water is also crucial.

The WHO recommended drinking one cup of water per hour and a minimum of 2 to 3 liters of fluids per day.

It also suggested wearing lightweight, loose-fitting clothing, taking showers with cool water, or using wet towels to lower body temperature as effective measures.

The WHO estimates that heatwaves were linked to an average of 489,000 deaths globally each year between 2000 and 2019.

As climate change increases the frequency and intensity of heatwaves, the organization emphasized that individuals practicing preventive measures is more important than ever.