A computer-generated image of red blood cells. Nitric oxide—known by the formula NO—is so vital for humans’ internal physiological processes that it was crowned Molecule of the Year in 1992. It plays ...

Learn more about the human tailbone and how, even though we may not have a strict need for it anymore, it still helps us with ...

Your anatomy operates like a machine, it's success hinging on the work of over 70 organs, each with a unique function. From the heart's blood-pumping ability to the liver's filtering power, each ...

"Once damaged, these hairs never grow back. You have around 3,500, and that is all you'll have throughout your entire life...

Not all organs are needed for survival. From your gallbladder to your spleen, here are 12 organs you can lose and still ...

The human body is a wonderous thing, especially when you consider how intricate and efficient each bodily system is. For instance, an adult’s blood vessels could encircle the earth 2.5 times if ...