Coughing is one of the most obvious and indisputable signs of human illness. In addition to being the main cause for patient visits to doctors, over a billion dollars are spent each year on over-the-counter (OTC) cough remedies in the US.
The gastrointestinal tract has two primary nutritional functions. The stomach, or gastric region, starts the process of digestion, preparing food for assimilation in the small intestines. The intestines sort through the digested components so they can be absorbed into the bloodstream, or passed through the alimentary canal to be excreted.