Learn all about the human body's many systems and some of its individual organs, both vital and vestigial.

The human body is a machine whose many parts – from the microscopic ... Intriguingly, however, a chin can be found in no other mammal, not even our closest cousins, the Neanderthals. Thanks to the ...

Here's what would happen to an astronaut's body if they didn't have a spacesuit protecting them in outer space.

Because body temperature is so commonly measured and provides an important tool for studying health, researchers say that it is past time to reevaluate the internal heat of the human body.