What is a fever and what should I do if I get one? Get answers to common questions on the condition that impacts everyone ...

My son just had his tonsils out. In the days after his surgery, he’s been running a low-grade fever. His doctor told him not to be concerned, so long as his temperature stays around 100 degrees and ...

Headaches often accompany fever because immune-triggered inflammation, viral infections, and sinus pressure activate pain ...

The human body’s internal thermostat operates with remarkable precision, maintaining core temperature within a narrow range that supports optimal function. When that temperature rises above normal ...