Background: Lifestyle diseases like hypertension, atherosclerosis, coronary heart disease (CAD), type –II diabetes mellitus, ischemic stroke are Non -communicable diseases leading to premature sickness, disability and death. To determine the risk factors of lifestyle diseases like hypertension and diabetes mellitus and to impart health education on the risk factors of lifestyle diseases and to determine the impact of health education.Methods: A educational interventional study was conducted in a randomly selected urban slum in Peelamedu, Coimbatore funded by ICMR STS.100 Men in the age group of 30-50 years were administered questionnaire to determine the risk factors of lifestyle diseases. Health education was given to the respondents regarding risk factors. The same questionnaire was given to the respondents after the health education to determine the impact of health education. Statistical analysis was performed by using SPSS version 20. Prevalence of risk factors was presented in percentage. Paired T test was used to find out the effectiveness of Health Education.Results: Among the study population, the risk factors for life style diseases in our study are smoking (39%), alcohol intake (27%), lack of physical activity (40%), overweight (36%), obesity (14%). The impact of health education on risk factors of lifestyle disease and it was statistically significant with smoking (p=.000), alcohol (p=.02), physical activity (p=.001) and not significant with BMI (p=.71).Conclusions: Regular health checks can be done to improve the frequency of preventive care and support for behavior change. Effective implementation of lifestyle modifications behavior like healthy diet intake, avoidance of high caloric foods, promoting physical activity help in preventing future complications as a part of primary preventive strategies at primary care level. The importance of lifestyle modifications should be reinforced.