Embodiments of the present systems and method may provide devices that can be conveniently worn continuously, yet monitor a wide range of physical and physiological parameters. For example, a system for monitoring human body activity may comprise a device mounted in an ear of a human, the device comprising a first portion adapted to be inserted in an ear canal of the human and a second portion adapted to protrude from the ear of the human, the first portion comprising a plurality of protrusions comprising at least one sensor, each sensor adapted to monitor a physical or physiological parameter of the human and output a signal, a data collection device adapted to receive the of signals and to process the signals to form digital data representing the monitored physical or physiological parameters, and a data processing device adapted to process digital data representing the monitored physical or physiological parameters.
