Background: Obesity is associated with adverse cardiovascular events which could be due to the altered autonomic balance seen in these individuals. Nowadays obesity is recognized as a major, worldwide, health problem. Material and Method: The present study was conducted in the Department of Physiology, at National Institute of Medical Sciences and Research, Jaipur. 50 obese (25 male and 25 female) and 50 non obese (25 male and 25 female) were included. Parasympathetic tests were performed on both groups. All data are expressed as mean± standard deviation. Comparison between groups obese male, non obese male, obese female and non obese female was performed using the student’s t–test (t–test for two independent samples / Two–tailed test). Differences was considered significance at p<0.05. Result: It was observed that young obese adults had reduced parasympathetic activity. Conclusion: This altered balance of the autonomic nervous system increases the risk of cardiovascular disorders.