Why Are There Three Reasons for Elevated Body Temperature?

Most people have a constant body temperature, unless they are ill or affected by environmental factors. If the body temperature is high and accompanied by discomfort, it is mostly caused by disease. In addition, there are two physiological conditions that can lead to higher body temperature, such as during hot weather or when there are large fluctuations in emotions. High body temperature refers to a condition where the body's temperature regulation center shifts its set point due to various reasons, resulting in a rise in body temperature above the normal range. High body temperature, also known as fever, is caused by excessive heat production, reduced heat dissipation, impairment of temperature regulation, or the action of pyrogens on the temperature regulation center, leading to an increase in body temperature beyond the normal range. Generally, when the axillary temperature exceeds 37°C or the oral temperature exceeds 37.5°C, and the body temperature fluctuates more than 1°C within a 24-hour period, it can be considered as high body temperature. There are many causes of high body temperature, with infection being the most common (including various bacterial infections, viral infections, mycoplasma infections, etc.). Other causes include connective tissue diseases (such as collagen diseases) and malignant tumors. High body temperature can have both beneficial and harmful effects on the human body. When the body temperature is high, the immune function is significantly enhanced, which is beneficial for clearing pathogens and promoting recovery from illness. Moreover, fever can be a sign of illness. Therefore, when the body temperature is not too high, drinking plenty of water can help reduce the discomfort caused by high body temperature. Antibiotics (such as penicillin) are not necessary for high body temperature caused by non-bacterial infections. Lukewarm glucose water can help with urination and cooling, and it is recommended to use physical methods to control body temperature when the temperature is below 38.5°C. However, if the body temperature exceeds 40°C (or 39°C for children), it may lead to symptoms such as dizziness, convulsions, shock, and even severe sequelae. In such cases, medical attention should be sought promptly. If symptoms such as convulsions occur, sedatives should be taken as prescribed (especially for children).