Smoking can cause lung disease by damaging your airways and the small air sacs (alveoli) found in your lungs.

• Lung diseases caused by smoking include emphysema and chronic bronchitis.
• Cigarette smoking causes most cases of lung cancer.
• If you have asthma, tobacco smoke can trigger an attack or make an attack worse.

• Effects of smoking on other body parts:

  • reduced lung function and breathlessness due to swelling and narrowing of the lung airways and excess mucus in the lung passages.
  • raised blood pressure and heart rate.
  • greater susceptibility to infections such as pneumonia and influenza.
  • irritation and inflammation of the stomach and intestines.
  • reduced ability to smell and taste.