Smoking is harmful!!!!!!

Some people think that smoking is not dangereous and harmful. I smoke in a few times and know the problems caused. Smoking can produce a lot of illnesses like lung cancer, it is also a risk factor for cancer of the bladder, kidney, cervix, throat... However, a lot of people in the world smoke continiously until they died. Lung cancer kills one person every 5 minutes in the world. Cigarette smoke contains 4000 compounds, many of which are toxic and can cause damage to cells. The three principals components of cigarette smoke are: Nicotine, Carbon monoxide and Tar.
Other people think that smoking only a few cigarettes a day it's not problem.
For addict people smoking is good because tobacco can keep them calm a lot for a moment.
Really it isn’t good for our lives and for our society.
Smoking doesn't just harm the smoker. It can also cause disease and death among people exposed to the smoke. It'is particularly damaging to babies and children whose parents smoke in the home. Passive smoking may also cause premature birth, babies with low birth, respiratory problems...