Researchers at North Carolina State University have built a new form of “dry” EKG/EMG sensors that allow doctors to get high-density data on a patient’s heart performance in a package that can be worn for extended periods of time. Traditional EKG sensors require a wet gel layer to be placed down between a patient’s skin and the sensor and cannot be left on the body for long periods. These new sensors can be worn on the skin and transmit information back to a portable device, paving the way to a more granular and high-resolution image of heart behavior.