Jerrold Meyer, University of Massachusetts Amherst (image) University of Massachusetts at Amherst Share Print E-Mail Caption The University of Massachusetts Amherst behavioral endocrinologist was among the first to show in a major controlled study that a prolonged or major life stress leads to a demonstrable increase in cortisol in hair. Now the technique is available to others. Credit Photo courtesy of University of Massachusetts Amherst 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.