The digestive system is the series of tubelike organs that convert our meals into body fuel. There are about 30 feet (9 meters) of these convoluted pipeworks, starting with the mouth and ending ...

Overall, scientific evidence suggests that probiotics can be a valuable tool in preventing gut diseases and improving ...

Your heart's will to beat, to keep going, is incredibly strong. If the heart fails, so does everything else… Because it's your heart's job to deliver to every cell, to every nook and cranny of ...

Researchers say they have discovered an entirely new class of life inside the human body, and it is very similar to a virus.

Because we have a digestive system! …a series of organs that break food down in a useful way for the body. And it gets rid of all the body's waste as well! The food we eat has to be broken down ...

PBS Nova spoke with physiology experts and competitors to find out what happens to the human body during intense speed eating competitions. It turns out these “athletes” train their stomachs ...