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 ...

Learn all about the human body's many systems and some of its individual organs, both vital and vestigial. When you purchase through links on our site, we may earn an affiliate commission. Here ...

Ultrasound scanners, which image the inside of the human body, are a life-saving medical tool. Now researchers have shrunk the handheld ultrasound probe—which typically requires a highly trained ...