Sensors and devices to be worn by a user to acquire, process, store, and transmit interaction data of the user, namely, electrodes, pedometers, accelerometers, stretch sensors, bioimpedance monitors, skin impedance monitors; computer hardware and software for use with user interaction monitoring devices for receiving, processing, storing, transmitting, and displaying user interaction data; Computer application software for mobile phones, portable media players, tablets, notebooks, PCs, IPTV devices and wearable technologies, namely, software for processing, storing and transmitting user interaction data; Multifunctional electronic sensors and devices for displaying, measuring, and uploading to the Internet information including user interaction data and real-time movement; Wireless transmitters and receivers; Electronic security devices in the nature of wearable fibers featuring near field communication (NFC) technology-enabled readers and near field communication (NFC) tags for authentication and identification of users of, and for providing secured access to, computer hardware, mobile computing devices and mobile phones; near field communication (NFC) technology-enabled tags