Introduction: Hypertension is a major health problem and when untreated, predispose to cardiovascular morbidity and premature death. Cardiovascular reactivity is the pattern of an individual__ampersandsignrsquo;s hemodynamic response to stress On the basis of genetic factor and environmental components, first degree relatives of essential hypertensive patients are known to be at risk of developing hypertension. Objective: The objective of the study is to compare the effect of aerobic exercise on response of cardiovascular functions and reactivity in normotensive offsprings of normotensive and hypertensive parents. Methodology: 30 individual with parental history of hypertension and 30 individual without parental history of hypertension were taken. At the beginning, baseline measures included body weights, heights were taken and BMI was calculated. After 5 minutes of rest, blood pressure reading was taken with mercury sphygmomanometer and heart rate reading was taken. Subjects performed aerobic exercise start with warm up in the form of slow walking for 5 minutes. Circuit training was given in the form of upper limb exercise, trunk mobility exercise, treadmill walking for 30 minutes. Subject performed exercise on RPE 6 and as much as can go above it on modified Borg scale with their maximum speed. Post parameter of heart rate and blood pressure was taken at immediately after, after 3 minute. Subjects performed cool down period in the form of slow walking for 5 minutes and again parameters were taken. Results: The result shows that there is statistically significant difference in the reactivity and cardiovascular functions in normotensive offsprings of hypertensive parents compared to normotensive offsprings of normotensive parents. Conclusion: The normotensive offsprings of hypertensive parents have increased reactivity and cardiovascular functions with delayed recovery compared to normotensive offsprings of normotensive parents.