0/05); while there was a significant difference between positive family history of heart disease and age (p<0.005), and also between heart disease history and age (p<0.005). The findings of the present study indicated that in young patients the highest percentage increase in laboratory risk factors and behavioral risk factors belonged to triglycerides (52. 4 %) and smoking (43%), respectively. Conclusion: It is ultimately concluded that social misconceptions about the refusal of coronary artery heart disease risk factors at the youth age should be changed, and through taking necessary educational measures guide the society towards health promotion, lifestyle changes and modification of coronary artery disease including smoking and triglyceride level.]]>