Smoking

Almost everybody has a friend who is a smoker. There are a lot of people who smoke regularly. And recently this problem has become really serious and world-spread.
Usually people smoke tobacco. And modern cigarettes contain a doze of nicotine. And the problem of smoking is often called nicotine addiction. The problem is that it is very difficult to quit this habit. Nicotine becomes the part of metabolism and that is why it is very difficult to give up smoking.
And the worst about cigarettes is that their smoke influences people who breathe it.
Nicotine is the toxin that may kill a person. There are a lot of methods that help to quit smoking. But still there are a lot of people who suffer from it and can't quit it or maybe simply don't want to quit it.
Smoking has also negative influence on appearance of people. First of all, the smell that is left after smoking is just awful, and many people don't try to hide it with the help of a gum or something like that. And other people just can't speak with a smoker because they feel a specific smell of tobacco.
Besides, teeth and nails become yellow.
Smoking has a negative influence on the baby if a woman is pregnant. It may cause different pathological changes in the body structure of a baby.
Nowadays according to law, there should be a note on the pack of cigarettes that should warn people about the danger and harm of smoking. But people don't care and continue smoking.
According to the same law it is forbidden to smoke in crowded places. In such way people who don't smoke are protected from harmful influence of the smoke.
Tobacco was brought from America by Columbus. When he discovered America and met Indians he saw that they were smoking something that they called tobacco. And the crew of the ship started to smoke too. And later it has spread all over the world.