Extreme cold triggers a silent shutdown of the body. Initially, shivering and numbness give way to confusion and weakness as ...

While the crater-pitted moon may appear geologically dead, researchers have discovered more could be going on under its icy shell.

While your veins may look blue, it's a common myth that the blood in our bodies is blue because it's deoxygenated. The blood ...

A study of U.S. veterans in California found seniors with diabetes or heart disease have an increased risk of death during hot weather.