An curved arrow pointing right. We spoke with Mary Roach about her unusual story that explains the absolute limit a human stomach can hold before it bursts. You can read more about Roach's ...

Explains the process of digestion, detailing how food is transformed into simpler substances that can be absorbed into the blood. It begins in the mouth with mastication and saliva mixing, followed by ...

The human stomach is one of the least hospitable environments on Earth. This dark, muscular cavity is filled with a noxious brew of hydrochloric acid and digestive enzymes designed to rip apart ...

Anatomist, Claire Smith, is showing me a real human digestive system. 'It's a vast, alien-looking mass of tubes. 'And this is the stomach.' DR CHRIS VAN TULLEKEN:I guess I thought it would be a ...