|Smoking is addiction ie. even if someone wants to quit, they cannot because cigarettes contain nicotine which actually alters the level of neurotransmitters in brain and changes the mood of a person. it produces pleasure, reduces anxiety stress etc. Smokers enjoy the nicotine rush and become dependent on smoking. A journal is a periodical publication intended to further progress of science, usually by reporting new research. Most journals are highly specialized, although some of the oldest journals publish articles, reviews, editorials, short communications, letters, and scientific papers across a wide range of scientific fields. Journals contain articles that peer reviewed, in an attempt to ensure that articles meet the journal's standards of quality, and scientific validity. Each such journal article becomes part of the permanent scientific record.