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Dangers of Smoking

Description

Cigarettes contain more than 4,000 chemicals, many of which cause cancer and heart disease.

​Smoking causes 84% of deaths from lung cancer and 83% of deaths from chronic obstructive pulmonary disease (COPD). 

Smoking causes around 7 out of every 10 cases of lung cancer (70%).

It also causes cancer in many other parts of the body, including the the following:

  • mouth
  • throat
  • voice box (larynx)
  • oesophagus (the tube between your mouth and stomach)
  • bladder
  • bowel
  • cervix
  • kidney
  • liver
  • stomach
  • pancreas

Smoking damages your heart and your blood circulation, increasing your risk of developing conditions such as:

  • coronary heart disease 
  • heart attack
  • stroke
  • peripheral vascular disease (damaged-blood vessels)
  • cerebrovascular disease (damaged arteries that supply blood to your brain)

Smoking also damages your lungs, leading to conditions such as:​
  • chronic obstructive pulmonary disease (COPD), which incorporates bronchitis and emphysema 
  • pneumonia 
  • ​Smoking can also worsen or prolong the symptoms of respiratory conditions such as asthma, or respiratory tract infections such as the common cold.

In men, smoking can cause impotence because it limits the blood supply to the penis.

It can also reduce the fertility of both men and women.


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