The emWave is an effective, innovative device which has earned the Seal of Approval from the American Institute of Stress. The emWave was developed from 15 years of scientific research conducted by the Institute of HeartMath, the global leader in researching the link between emotions, heart-brain communication and cognitive function.  HeartMath research has been published in peer-reviewed journals such as The American Journal of Cardiology, Journal of Advancement in Medicine, Stress Medicine and Harvard Business Review.