This document discusses the development of a smart shirt that can monitor vital signs through wearable technology. It begins by defining a smart shirt as a wearable analytical device that can detect analytes like respiration rate and body temperature. It describes the need for such technology to remotely monitor patients' vital signs and enhance safety. The key components, materials used, manufacturing processes, applications, limitations, and advantages of smart shirts are outlined. The document concludes by envisioning smart shirts as flexible wearable motherboards that can think and act based on a user's condition.