INTRODUCTION History of flexible and stretchable electronic devices FUNDAMENTAL MATERIALS FOR FLEXIBLE AND STRETCHABLE TRANSISTORS AND SENSORS Organic-based transistors and sensors Inorganic-based transistors and sensors Printed transistors and sensors ENERGY HARVESTING AND STORAGE Photovoltaic systems Thermoelectric power generators Supercapacitors ADDITIONAL COMPONENTS FOR FLEXIBLE AND STRETCHABLE MEDICAL DEVICES Display Resistive memory Floating-gate memory Wireless systems MEDICAL AND HEALTHCARE APPLICATIONS Flexible health monitoring devices Stretchable health monitoring devices Flexible and stretchable devices for medical applications Implantable flexible sensors for neural recording SUMMARY AND OUTLOOK Perspective sakriti opis