Embodiments may stimulate nerve activity using transcutaneous nerve stimulation, as well as monitor nerve activity through the skin. Various branches of the nervous system may be accessed at various points on the body. For example, system for monitoring and stimulating human body activity and conditions may comprise at least one transcutaneous nerve stimulation circuitry comprising a circuitry adapted to generate a nerve stimulation signal and at least one electrode or contact adapted to apply the nerve stimulation signal to a nerve of a human through a skin of the human, transcutaneous electrical nerve monitoring circuitry comprising a circuitry adapted to monitor at least one nerve signal received from at least one sensor adapted to obtain the at least one nerve signal from a human through the skin of the human, and control circuitry adapted to control signal generation and signal application of the transcutaneous nerve stimulation circuitry