Why do I sweat so much with the flu?

Sweating is a natural response to an elevated body temperature, which is a common symptom of the flu. When the body's temperature rises, the sweat glands are activated to release sweat, which helps to cool the body down. This process is known as thermoregulation.

In addition to being a response to fever, sweating can also be caused by other symptoms of the flu, such as chills, muscle aches, and headaches. These symptoms can cause the body to release adrenaline and other stress hormones, which can also trigger sweating.

Sweating can also occur as a result of dehydration. When the body is dehydrated, the sweat glands are less able to function properly, which can lead to increased sweating. Therefore, it is important to drink plenty of fluids when you have the flu to stay hydrated and help reduce sweating.

Additionally, some medications used to treat the flu can also cause sweating as a side effect. If you are experiencing excessive sweating while taking medication, talk to your doctor.