Cancer

• What are the two types of tumors mentioned?

  Benign and malignant tumors
• What is a benign tumor?

  Growth of abnormal cells in one area
• How do benign tumors behave in the body?

  They do not invade other body parts
• What distinguishes malignant tumors from benign tumors?

  Malignant tumors invade neighboring tissues
• What happens to malignant cells once they enter the bloodstream?

  They spread and form new tumors
• What are secondary tumors?

  New tumors formed from malignant cells
• What is a risk factor for developing cancer?

  A characteristic that increases cancer risk
• How can genetics influence cancer risk?

  We inherit increased risk from parents
• Which cancers are mentioned as having genetic links?

  Certain breast, prostate, and large intestine cancers
• What lifestyle factor is linked to lung cancer?

  Smoking
• What causes skin cancer according to the material?

  Exposure to ultraviolet light
• What type of cancer is linked to alcohol consumption?

  Mouth and throat cancer
• What environmental substance is mentioned as a cancer risk factor?

  Radon
• How does radon increase lung cancer risk?

  It releases ionizing radiation damaging DNA
• What can uncontrolled cell division lead to?

  Development of cancer
• What are the key features of benign and malignant tumors?

  • Benign tumors:
  • Growths of abnormal cells in one area
  • Do not invade other tissues
  • Malignant tumors:
  • Invade neighboring tissues
  • Spread through the bloodstream
  • Form secondary tumors
• What are the risk factors for developing cancer?

  • Genetic factors (inherited risks)
  • Lifestyle factors:
  • Smoking (lung cancer)
  • Ultraviolet light (skin cancer)
  • Alcohol consumption (mouth and throat cancer)
  • Environmental factors (e.g., radon)