The leaves that are taken from the tobacco plant to use in cigarettes goes through a variety of different stages that are included in the processing before the final product is put into the cigarettes that are distributed all around the world that men, women, and children end up becoming addicted to. To many people, it is shocking to find out that there are several different harmful chemical substances that are added to tobacco, that would be extremely deadly if an individual were to consume these substances. One such chemical that is added to the tobacco in cigarettes is ammonia. The common use for this particular chemical is to be used as a household cleaner. People do not even have to ingest this harmful chemical for it to cause a large amount of irritation that occurs in the throat, on the skin, in the lungs, in the nose, and in the eyes. Not only is ammonia one of the harmful ingredients that have been approved to be added to tobacco by the Government of the United States, but there are several others that are just as harmful. It would be wise to think first before puffing on your next cigarette.