Russian doctor Svetlana Burnatskaya pointed out some reasons that increase the likelihood of catching a cold in the summer.
In an interview with the Russian website Lenta.ru, the doctor said: "Many people catch colds and viral infections even during the summer and in hot weather. The sudden change between different temperatures is one of the main causes of summer colds. When a person goes from a temperature of 35 degrees Celsius to an air-conditioned room of 18 or 20 degrees Celsius, the body has to adapt quickly. Although cold air does not cause viral infections in itself, it can weaken the defenses of the mucous membranes in the nose and throat, making it easier for viruses to enter the body."
She added: "The same effect may occur when drinking very cold beverages in hot weather, or swimming for a long time in cold water after exposure to high temperatures, or as a result of direct exposure to strong air conditioning, which may lead to a decrease in body temperature."
Burnatskaya pointed out that air conditioners are not a source of viruses, provided they are regularly maintained, but they can become a source of dust, allergens, and some microorganisms if their filters are dirty. The dry air circulated by air conditioners can also dry out the mucous membranes of the respiratory system, increasing susceptibility to respiratory viral infections.
Several health experts point out that prolonged exposure to high temperatures may negatively affect cardiovascular health, which may impact the efficiency of the immune system and increase susceptibility to diseases and viral infections.
