Background:Due to anticipated increases in blood pressure correlated with BMI, it is projected that a substantial number of additional cases of myocardial infarctions and strokes will occur due to the connection between hypertension and cardiovascular risk.Methods:Blood pressure, Cold pressure test and body mass index of the subject (n=240, age =18-25 years) was recorded following standard procedure. The blood pressure was recorded by auscultatory method. The dominating arm of the subjects was immersed in the cold water and after that immediately within 1 minute systolic and diastolic blood pressure was measured.Results:The study reveals that sympathetic activity significantly increased in individuals with overweight and obesity compared to those with a normal body mass index following the cold pressor test.Conclusion:Following the Cold Pressor Test, it was observed that sympathetic activity increased in overweight and obese subjects in comparison to those with a normal body mass index.