These are important for breaking down the food so it can be absorbed by the body. After it leaves the stomach, the partially-digested food passes into the intestines where it begins to be absorbed.

The digestive system is the series of tubelike organs that convert our meals into body fuel. There are about ... The esophagus empties into the stomach, a large, muscular chamber that mixes ...

Some of the effects that radiation has on a human body are shown below ... Lungs Breathing in radioisotopes can damage DNA. Stomach Radioactive isotopes can sit in the stomach and irradiate ...

These guys—the good-guy bacteria—wait in your intestines for food to come from your stomach. Then they take ... and break it down into something your body recognizes as nutrients (which ...

For generations, Gatorade and similar electrolyte beverages have been helpful tools for athletes seeking a competitive edge.