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 ...

Dear Dr. Roach: I am an 80-year-old man in relatively good health. I don’t smoke or drink, and I have a vegetarian diet. I exercise moderately, and I am not overweight. About 30 years ago, I ...

That thermometer reading you barely glance at during a doctor’s visit? It might be hiding critical information about your health that goes far beyond checking for a fever. While we’ve long treated ...

Here’s why we appear to be getting cooler, and what that could mean when it comes to fevers. By Dana G. Smith Over the past few decades, evidence has been mounting that the average human body ...

This lesson plan teaches students how the human body self-regulates to maintain a stable internal environment despite changes in the external environment -- a process called homeostasis. Most of the ...

Common knowledge says that your body temperature should be 98.6 degrees F and that a high or low body temperature signals something is wrong. But that's not quite true. In general, normal body ...

Throughout history, people have had to find ways to cope with varying environmental conditions. Whether they lived in a hot or cold climate or had access to plentiful or limited water, they adapted ...