So it's a good job we've got the circulatory system to transport nutrients, water and oxygen to the entire body. If we could join all the blood vessels in a human body together end-to-end ...

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 ...

The human gut is home to trillions of microbes that not only aid in digestion, but also play a key role in shaping our immune ...

Day and night, the muscles of your heart contract and relax to pump blood throughout your body. When blood returns to the heart, it follows a complicated pathway. If you were in the bloodstream ...

And through those blood ... human could lose 65% of their liver and ultimately be no worse for wear, since it would grow back over just a few months! So when you think about it, your body is ...

Stem cells can produce any other cell type, it is just a matter of telling them in the right way. From a biological ...

Human blood is a complex mixture containing: Red blood cells which carry oxygen throughout the body, white blood cells are part of the immune system, platelets which are essential for blood ...