Individuals who chose nursing or medical profession will move from home to study or work. At some, many of them will get homesick.

Digestion during a proper healthy state takes food through various processes from the moment of biting and chewing in the mouth to the elimination of undigested materials. It breaks down the food into smaller parts (nutrients) that the body quickly absorbs to use as energy and building blocks for the cells.

Almost all cells have numerous molecules on the surface. It includes the red blood cells. The molecules play an essential role in the interaction with immune system’s cells.

A blood transfusion is a transfer of blood or its products to a person bloodstream. It is a usually a maneuver to replace the blood cells and products after a loss through severe bleeding or surgery.