Effect of Smoking For Non Smoker

The life expectancy of smokers is shorter than that of non smoker. Smoking is, by a large margin, the biggest preventable cause of death, responsible for about 1 in 10 adult death in the worldwide.

The agents probably responsible for the harmful effects are :

  • Tar and Irritant ( nitrogen dioxide, formaldehyde).
    The various irritant substances are responsible for the increase in bronchitis and emphysema. Carcinogenic hydrocarbons account for the high cancer risk.
  • Nicotine.
    Nicotine is vasoconstrictor and probably accounts for retarded fetal development. It is also cause the increase in cardiovascular risk
  • Carbon monoxide.
    Carbon monoxide has a high affinity for haemoglobin and the average carboxyhaemoglobin content in blood of cigarette smokers is about 2.5 % (compared with 0.4% for non smoking urban dwellers).

In 1990, smokimg was responsible for 10 % of death worldwide. By 2030, this is expected to increase to 17 %, because of the growth of smoking in Asia, Africa and Latin America. The main Health risks are as follows.

Cancer.
Approximately 90 % of lung cancer is caused by smoking. Pipe and cigar smoking carry much less risk than cigarette smoking, though the risk is still appreciable. Tar, rather than nicotine, is responsible for the cancer risk

Coronary heart disease and  other forms of peripheral vascular disease.
The mortality among men aged 55-64 from coronary thrombosi is about 60 % greater in men who smoke 20 cigarettes per day than in non smokers.

Chronic Bronchitis.
Its effect is probably caused by tar and other irritants, rather than nicotine

Harmful in pregnancy.
There is evidence that children born to smoking mothers remain behind, in both physical and mental development, for at least 7 years. By 11 years of age, the difference is no longer significant.

Just copied from http://drugsfile.com/others/15-others/25-effect-of-smoking-for-non-smoker

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