I don't know why people smoke, everyone knows that smoking is dangerous to health, but still they are smoking. Even the fact is also written on the cover with a warning. All can see that warning but ignore. Facts and study tell that one cigerete reduces 8 minute of your life. Don't play with your health and body. It really cause a serious problem.
On the other hand, not only the user, the smoke also affects the surrounding people. The problem like cancer, brain tumer, fertility etc. are the main problem caused by cigerete. Please this is a request, Don't smoke.