Cancer is a broad term, which describes the disease that results when cellular changes cause the uncontrolled growth and division of cells. A cell receives instructions to die so that the body can replace it with a newer cell that functions better. Cancerous cells lack the components that instruct them to stop dividing and to die. As a result, they build up in the body, using oxygen and nutrients that would usually nourish other cells.
Cancerous cells can form tumors, impair the immune system and cause other changes that prevent the body from functioning regularly.
Leave a Reply