Explanation
During fever, heartbeats faster than normal.
Fever is a medical condition that occurs when the body's internal temperature rises above the normal range. The increase in temperature is usually caused by an infection, inflammation, or other medical conditions. When the body experiences a fever, the heart has to work harder to pump blood to different parts of the body to help regulate the temperature.
The heart rate is controlled by the autonomic nervous system, which responds to changes in the body's internal environment. When the body experiences a fever, the autonomic nervous system responds by increasing the heart rate to help circulate blood more efficiently and regulate body temperature. This increase in heart rate is a normal physiological response to fever and is generally not a cause for concern unless it becomes too high or is accompanied by other symptoms.
In some cases, a very high fever can cause an abnormal heart rhythm, which can be dangerous. If you experience an irregular heartbeat or other symptoms during a fever, you should seek medical attention immediately.