Smoking

How does it cause cancer in everyday life?

What is so bad about smoking?

  • 90% of lung cancer deaths in men & 80% in women are due to lung cancer in the United States
  • "Smoking causes many other types of cancer, including cancers of the throat, mouth, nasal cavity, esophagus, stomach, pancreas, kidney, bladder, and cervix, and acute myeloid leukemia."
  • "Cigarette smoking causes an estimated 443,000 deaths each year, including approximately 49,000 deaths due to exposure to secondhand smoke."

How can you find it?

  • Biopsy
  • Bronchoscopy
  • CT Scan

Tobacco has Dangerous Chemicals

  • Smoking tobacco has over 70 carcinogens
  • Inhalation of smoke lets chemicals enter lungs
  • Tobacco can damage DNA molecules
  • Rapid Growth to repair damaged DNA
  • Then becomes uncontrollable
  • Lung cancer can result
  • Other cancer: throat, larynx, pharynx

Smoking & Cancer Mutation

  • "Primary lung cancer"- cancer originates in lungs
  • "Secondary lung cancer"- cancer moves to lungs after effecting another area first
  • "Metastasis" is the spreading of cancer to new sights
  • New sight of cancer is called "metastases"
  • Metastasis occurs when cancerous material invades the blood stream and lymphatic channels

What happens when you have cancer?

  • Cancer cells will multiple controllably
  • Take over a certain area of the body
  • If cancer keeps growing, invaded area will not function properly
  • Ex: If your lungs can't function the way they are supposed to, you can't breathe and die

Prevention

  • Its pretty simple.... STOP SMOKING
  • Avoid Second Hand Smoking
  • Routine house checks for radon
  • Healthy Diet (Fruits have been found to protect against lung cancer)


Treatment

  • Chemotherapy (first stage)
  • Radiotherapy
  • Chemoradiotherapy (at the same time)
  • Lobectomy- removing of a lobe from the lung (stage 1&2 cancer)
  • Peumonectomy- removing of a whole lung (stage 3)