B. Health problems are the obvious disadvantage to smoking.
1. In a person with a chronic lung disease.
1. chronic lung disease sacs lose their elasticity and oxygen exchange is greatly impaired.
2. Chronic obstructive pulmonary disease is usually made up of two conditions that make breathing difficult.
1. Emphysema and chronic bronchitis. When you have emphysema, the air sacs in your lungs start to deteriorate and lose their elasticity.
2. Chronic bronchitis occurs when the lining in the tubes in your lungs swell and restrict your breathing.