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What is cancer with reference?

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What is cancer with reference?

Cancer is the uncontrolled growth of abnormal cells in the body. Cancer develops when the body’s normal control mechanism stops working. Old cells do not die and instead grow out of control, forming new, abnormal cells. These extra cells may form a mass of tissue, called a tumor.

What are 3 facts about cancer?

Key Cancer Facts

  • 10 million people die from cancer every year.
  • At least one third of common cancers are preventable.
  • Cancer is the second-leading cause of death worldwide.
  • 70% of cancer deaths occur in low-to-middle income countries.

What are the 3 known causes of cancer?

There is no one single cause for cancer. Scientists believe that it is the interaction of many factors together that produces cancer. The factors involved may be genetic, environmental, or constitutional characteristics of the individual.

What are 5 facts about cancer?

9 things you may not know about cancer.

  • The word ‘cancer’ comes from the Latin for ‘crab’ – just like the zodiac sign.
  • Cancer was first described by the ancient Egyptians.
  • There are more skin cancer cases due to indoor tanning than lung cancer cases due to smoking.
  • More than half of all cancers are preventable.

    • What causes cancer?

    Cancer is caused by certain changes to genes, the basic physical units of inheritance. Genes are arranged in long strands of tightly packed DNA called chromosomes. Cancer is a genetic disease—that is, it is caused by changes to genes that control the way our cells function, especially how they grow and divide.

    What is cancer definition PDF?

    Cancer is the uncontrolled growth of abnormal cells anywhere in the body. These abnormal cells. are termed cancer cells, malignant cells, or tumor cells.

    What is so interesting about cancer?

    Cancer is the second leading cause of death globally — it accounts for 1 in 6 deaths around the world. Globally, approximately 70% of deaths from cancer occur in low- and middle-income countries. 30-50% of cancer cases are preventable.

    What are the 3 types of cancer genes?

    About genetic mutations

    • Acquired mutations. These are the most common cause of cancer.
    • Germline mutations. These are less common.
    • Tumor suppressor genes. These are protective genes.
    • Oncogenes. These turn a healthy cell into a cancerous cell.
    • DNA repair genes. These fix mistakes made when DNA is copied.

    What is the most interesting fact about cancer?

    The number of cancer survivors is expected to increase to 20.3 million by 2026. Cancer is the second leading cause of death globally — it accounts for 1 in 6 deaths around the world. Globally, approximately 70% of deaths from cancer occur in low- and middle-income countries. 30-50% of cancer cases are preventable.

    Why is cancer so important?

    In many countries, cancer ranks the second most common cause of death following cardiovascular diseases. With significant improvement in treatment and prevention of cardiovascular diseases, cancer has or will soon become the number one killer in many parts of the world.

    What is the #1 cause of cancer?

    While smoking is still by far the biggest cause of cancer and cancer deaths, obesity, poor diet and drinking too much alcohol cause an increasing number of cancer cases and deaths.

    What is the introduction of cancer?

    Cancer occurs when this cellular reproduction process goes out of control. In other words, cancer is a disease characterized by uncontrolled, uncoordinated and undesirable cell division. Unlike normal cells, cancer cells continue to grow and divide for their whole lives, replicating into more and more harmful cells.