Every few days, the human stomach quietly discards its entire inner surface and builds a new one from scratch. This constant self-demolition is not a sign of damage but a survival strategy: the organ ...

In the stomach, so-called parietal cells are responsible for acid production. They react not only to the body's own messenger molecules, but also to bitter-tasting food constituents such as caffeine.

Your first thought may be of a rainforest, but here’s a cool science fact for you: We can thank plant-based marine organisms ...