Scientists think they may have finally discovered the reason why human body temperature has been decreasing over the past few centuries—gut microbes. A paper published in the American Journal of ...

In A Nutshell Your brain amplifies cold signals during fever. When you’re sick, a molecule called prostaglandin E2 cranks up activity in neurons that make normal temperatures feel freezing cold: even ...

For centuries, the nature of a fever — and whether it's good or bad — has been hotly contested. In ancient Greece, the physician Hippocrates thought that fever had useful qualities, and could cook an ...

Over the past few decades, evidence has been mounting that the average human body temperature is not really 98.6 degrees Fahrenheit. Instead, most people’s baseline is a little bit cooler. The ...