Calorie Restriction's Impact on Heart Rate Variability (audio) Washington University School of Medicine Share Print E-Mail Loading audio... Caption Studies have found that animals who take in fewer calories live significantly longer than their littermates that eat a more standard diet. Now, growing number of people believe that restricting their caloric intake may help them live significantly longer, too. Now researchers at Washington University School of Medicine in St. Louis have found that a key marker of heart function indicates that there may be something to that. Credit Washington University BioMed Radio Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.