The human body is composed of over 37 trillion cells , each with a limited lifespan. These cells are continuously replaced to maintain organ and ...

The human brain and body function differently under the extreme stress of combat than they do under normal circumstances. Former West Point psychology professor Lt. Col. Dave Grossman teamed up ...

What does our body do? The human body has different parts that help us do things like walk, talk, eat, and see. Just like a car has different parts, such as wheels and windows, our bodies also ...

One of the male sexual organ’s main roles is to make procreation happen, but the penis also has cultural significance. Here ...

Some human body parts serve no purpose despite once having a specific function among our ancestors. The appendix, for example, is not an essential body part (though some research suggests it may ...