|It is the most common type of heart diseases and the main cause of heart attack. If Smooth and elastic lining inside a coronary artery develops atheroscelrosis then coronary artery diseases may occur. Common sign and symptom are angina that occurs regularly with activity. Risk factors of coronary artery diseases are smoking, hypertension, obesity, diabetes, stress and hyperlipidemia etc. A journalÂ is aÂ periodical publicationÂ intended to further progress ofÂ science, usually by reporting newÂ research. Most journals are highly specialized, although some of the oldest journals publish articles, reviews, editorials, short communications, letters, andÂ scientific papersÂ 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 scientificÂ validity. Each such journal article becomes part of the permanent scientific record.