The project involves four blocks of work (i) the industrial design of a wearable digital health device and the fabrication of prototypes (ii) the industrial design of the user interface of an associated smartphone App to support the use of the wearable device (iii) the industrial design of the user interface of a clinician web browser to facilitate clinician monitoring of the progress of the user and providing a capability to deliver push notifications to the user and (iv) the layout design of the printed circuit board(s) (PCB) and fabrication of prototype PCB assemblies for the wearable device’s electronics. The device will be a body-worn device, worn throughout the user’s waking hours and potentially also while the user is sleeping to deliver health benefits to the user