High fever is defined as a significant increase in body temperature, typically above 100.4°F (38°C). It is often a symptom of an underlying condition, such as an infection. In some severe cases, high fever can reach dangerously high levels, such as 108°F, which can pose serious health risks.
High fever matters for health because it can signal that the body is fighting an infection or illness. It can indicate conditions like typhus, which can be life-threatening if not addressed. Monitoring body temperature is important in determining the severity of an illness and guiding further medical evaluation.
The basic function of fever in the body is to enhance the immune response. When the body detects an infection, it raises its temperature to create an environment that is less favorable for pathogens. This increase in temperature can help the body fight off infections more effectively.
It is important to note that while high fever can be a sign of serious illness, it is also a normal part of the body's defense mechanism. Understanding when a high fever is a cause for concern can help individuals make informed health decisions.