This short film offers a look at respiration and a tour around the circulatory system and digestive system in the human body, through blood vessels and into mitochondria. There is a detailed ...

A large-scale Japanese study further confirmed that decreased bowel movement frequency is associated with higher cardiovascular mortality, particularly stroke. Digestive disorders frequently lead ...

What happens in your intestines? Find out about the role of the small and large intestines in the digestive system. What is the circulatory system? Find out how the circulatory system takes oxygen ...