Overheating of the body can occur when heat suddenly sets in in regions with a temperate climate. In this case, in the first few days, people may feel worse, some have cramps, a feeling of complete exhaustion occurs, and heat stroke is possible.
Thermal exhaustion is usually associated with intense physical activity at an ambient temperature above +32 ° C and humidity more than 70%. Under such conditions, the body then loses a large amount of fluid. This exhaustion can occur in any person, but people who are poorly adapted to the heat and athletes participating in competitions in hot weather are most at risk.
Heat stroke is usually caused by physical stress, hot weather with high humidity, poor ventilation, dark and insufficiently light clothing, and dehydration of the body. These factors, superimposed on each other, deprive the body of the ability to cool itself through sweating. The body temperature rises to a dangerous level, blood pressure drops, a coma may occur in the victim.
In order to prevent the onset of heat exhaustion and heat stroke, it is necessary to prevent dehydration of the body, drink more before, during and after strenuous activity. If signs of overheating appear, you need to take refuge in a cool place, drink water or chilled tea. Avoid exposure to the sun during the midday hours when the temperature and solar activity are maximum. From 12 to 14 hours it is necessary to be in a shaded, well-ventilated place whenever possible. In hot and humid weather, you should limit physical activity outdoors, wear light clothing in light colors, so that heat is reflected, but not absorbed. It is not recommended in such weather to consume foods, medicines and substances that adversely affect the body’s thermoregulation (alcoholic beverages, coffee, aspirin and other antipyretic drugs), as well as smoking. You should eat foods high in carbohydrates and water, which helps to cool.