Cancer is a danger of smoking. Because 
of the known carcinogens and mutagens found in cigarettes and tobacco 
products, it is not a mystery how smoking causes cancer. Cancers of the 
oral cavity, laryngeal cancer, esophageal cancer, pancreatic cancer, and
 lung cancer are just some examples. In the United States, 87% of lung 
cancer cases are linked to smoking. Lung cancer risk of secondhand 
smokers is increased by 20 to 30%.
Another danger of smoking is its effects
 on the heart. Because nicotine causes narrowing of the blood vessels 
which leads to blockage, smokers are 5 times more at risk of suffering a
 heart attack. And nonsmokers who are exposed to secondhand smoke have 
increased risk of developing heart disease by 25 to 30%. Other diseases 
include stroke, peripheral vascular disease, and atherosclerosis.
The immune system is also harmed by 
smoking. The risk of acquiring various infections like common colds, 
invasive pneumococcal disease, chronic bronchitis, and other pulmonary 
and respiratory infections is increased by smoking. If a smoker consumes
 20 or more cigarettes a day, acquiring tuberculosis is increased by 2 
to 4 times.
Another danger of smoking is the 
likelihood of a miscarriage. It is discouraged for pregnant women to 
smoke because it deprives oxygen for the fetus. Smoking while pregnant 
can cause the infant to be born with low birth weight and small for 
gestational age. These could lead to more infant diseases like jaundice 
and breathing difficulty. Sudden infant death syndrome has also been 
linked to smoking while pregnant.
Other dangers of smoking are the 
development of diseases such as chronic pulmonary disease, emphysema, 
asthma, allergies, and many others. All these dangers of smoking cause 
death. A smoker’s life expectancy is reduced by 2.5 to 10 years. And for
 each consumed cigarette, a smoker loses 11 minutes of his life! These 
facts are what made smoking as the second major cause of death 
worldwide.






 

 
 
 
 

0 komentar:
Posting Komentar