Various cells in the stomach secrete digestive enzymes and hydrochloric acid. These substances break down food so the body can absorb nutrients. The stomach is a muscular organ in the upper abdomen ...

The esophagus is a tubular, elongated organ that plays an important role in transporting food and liquids to the stomach. Several conditions can negatively affect the esophagus, including acid reflux, ...

Peng Du is a co-founder and has shares in Alimetry Ltd. He receives funding from Royal Society Te Apārangi and the US National Institute of Health. peikai.zhang@auckland.ac.nz is affiliated with The ...