Cancer is a group of diseases that begin in cells, the building blocks of life. Cells argon essential parts of the body, and when they atomic number 18 damaged they give the axe ingest many problems. Under normal conditions, cells grow and divide to sustain more cells when the body needs them. However, sometimes, these cells keep dividing causing a growth of tissue, which is called a tumor.
Tumors are generally benign or malignant. Benign tumors are non considered roll in the haycer and can lots be removed from the body, without coming back. Benign tumors are seldom threatening to the body. Malignant tumors are crabby person and the cells in these tumors are abnormal, dividing without any sort of control or order. The cells can banquet and harm nearby organs; they can also preface the bloodstream, or lymphatic system, spreading to form new tumors in other organs. This spread of cancer is called metastasis. Most cancers are named by and by the organ they form in, for example, cancer in the lungs, is referred to as lung cancer.
Almost any adept can contract cancer, although there are certain high-risk behaviors and activities that can outgrowth the likelihood of contracting cancer. The definitive cause of cancer has not yet been discovered, although researchers are searching for answers. Researchers also contain patterns of cancer in the population to look for risk factors, conditions that increase the detect that cancer might occur.
Although doctors cannot explain why one person gets cancer and another does not, it is clear that cancer is not caused by an injury, such as a bruise or bump. Although being infected with some viruses can increase the chance of getting cancer, it is not contagious, meaning it is not possible to take prisoner it from someone else.
Cancer, generally, develops over time. Cancer is a result of a mix of...
Well written and not overly technical. Provides a safe(p) introduction of cancer and its causes. Would have been better if it had listed some references. assert up the good work.
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