smoking (bad effects) part 1

Bad effects of smoking on health

 Smoking is very harmful to human health. The smoke contains chemicals and gases, 

Cigarettes:

 Dried tobacco leaves are used in cigarettes.These are very dangerous for human health

Cigarettes

 

 

 

 

 

  Compounds of tobaceo: 

The tobacco on burning produce a number of dangerous and toxic compounds. 

Nicotine 

Man is addicted to cigarette damages 
1-brain tissues. 
2-Causes blood to clot more easily.
3- Hardens walls of arteries. 

Tar :

1-Tar  Kills cells in air passages and in lungs.
2- Increase production of mucous and phlegm in lungs.
3- Causes lung cancer. 

Carbon monoxide : 

Prevents red blood cells from combining with and transporting oxygen around the body. 

Carcinogens 

It Promote the growth of cancerous cells in the body. 

Irritants 

It  Irritate air passages and air sacs in the lungs. Kill cells at the surface of air passages. Causes smoker’s cough and lung cancer. 

Diseases produced by smoking 

Smoking can produce the following diseases: 

Bronchitis 

The smoking can produce inflammation of the respiratory or air passages like trachea, bronchi and bronchioles. This disease is called bronchitis.

 Cancerous Lungs 

 The attack of the disease is sudden and short lived but in chronic bronchitis, the attack is more frequent and of a long spell. 

Symptoms of cancerous lungs

 The air passage gets narrow which produces difficulty in breathing. The chronic bronchitis can be fatal also. The cigarette smoke damages the ciliated epithelium due to which foreign particles instead of being trapped and eliminated can go to the lungs and produce infection etc. 
The mucus is also secreted in greater quantity which can block the air passages and leads to repeated and continuous coughing. This is called smoking cough. 

Lungs Cancer 

 Cigarette smoke and asbestos dust have frequently been reported to have produced cancer of lungs. Cancer is a very dangerous and fatal disease, which results from the disordered and uncontrolled cell division. 

Causes of  lung Cancer 

The tar of the cigarette smoke has been reported to be the cause of cancer production. This chemical can damage the cells of internal epithelium of lungs and air tubes. This can produce cancer in the epithelium lining the air passages, which can lead to thickening of their walls, ultimately blocking them. Spread: Small tumors can be destroyed by the white blood cells but when a tumor increases in its size it can spread by way of blood to other parts of the body. 

Symptoms of lung cancer

The early stages of cancer produce no symptoms, hence it goes on growing unnoticed tfll it has completely spread and at this stage it is no more curable and becomes fatal. Lung cancer is very painful and dangerous. Its intensity usually has a correlation with the quantity of tar inhaled which in turn is related with the frequency of smoking. ~ 

Smoking and Cancer: 

 It has been found that smoking for 25 years with 20 cigarettes a day can produce lung cancer in the smokers. When the lungs of regular smokers were examined and compared with the lungs of non-smokers of the same age and sex, it was found that the smokers had developed lung cancer. 

Treatment of lung cancer

The treatment of cancer consists in removing the cancerous parts of the body or destroying it through irradiations. Bad social effects of smoking The non-smokers are allergic to cigarette smoke at it produces irritation in their eyes and throats. The non-smoker, therefore, do not like the company of smokers. The non-smokers are also develop cancer by continuously living in an environment polluted of cigarette smoke. 
                                           next .........smoking part 2