What is cancer?

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Cancer is a group of diseases resulting from the unchecked growth of cells caused by DNA mutations. Mutations can be inherited or developed as a result of a variety of factors such as weight and lifestyle choices, environmental exposures, or simply aging. Our cells are constantly dividing, and mutations are inevitable. As a person ages, mutations have more time to collect and develop into malignant (cancerous) tumors. However, not all tumors are cancerous; some are benign (non-cancerous). The difference between malignant and benign tumors is that cancerous cells can break off from malignant tumors and spread to other parts of the body. By spreading to other organs, cancer can affect the body’s normal functions. There are many different types of cancer[MB1] , and cancer can develop anywhere in the body.[1] Some of the most common types of cancer are breast cancer, lung cancer, prostate cancer, and colorectal cancer.[2]

 [MB1]Link to ‘types of cancer’ article

References

1.     What Is Cancer? https://www.cancer.org/cancer/cancer-basics/what-is-cancer.html (accessed Jun 10, 2021).

2.     Cancer https://www.who.int/news-room/fact-sheets/detail/cancer (accessed Jun 10, 2021).

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Why is cancer so hard to treat?