A biofeedback sensor for sensing biofeedback signals of a user, the biofeedback sensor comprising: a body interface to receive body area network signals; a signal demultiplexer having an input coupled to the body interface to receive the body area network signals, a first output, and a second output, the signal demultiplexer configured to demultiplex the body area network signals to produce a biofeedback signal at the first output and a body-coupled communication signal at the second output; and a sensor signal conditioning circuit coupled to the first output of the signal demultiplexer, the sensor signal conditioning circuit configured to process the biofeedback signal; and a body area network communication circuit coupled to the second output of the signal demultiplexer, characterized in that the body area network communication circuit is configured to: determine whether the body-coupled communication signal is transmitted from a body-area network controller via the body of the user; process the body-coupled communication signal in response to a determination that the body-coupled communication signal is from the body-area network controller; determine whether the body-coupled communication signal includes a request for the biofeedback sensor from the body-area network controller to adjust the processing of the biofeedback signal; control the sensor signal conditioning circuit, in response to a determination that the body-coupled communication signal includes the request for the biofeedback sensor to adjust the processing of the biofeedback signal, to adjust the processing of the biofeedback signal. a body interface to receive body area network signals; a signal demultiplexer having an input coupled to the body interface to receive the body area network signals, a first output, and a second output, the signal demultiplexer configured to demultiplex the body area network signals to produce a biofeedback signal at the first output and a body-coupled communication signal at the second output; and a sensor signal conditioning circuit coupled to the first output of the signal demultiplexer, the sensor signal conditioning circuit configured to process the biofeedback signal; and a body area network communication circuit coupled to the second output of the signal demultiplexer, characterized in that the body area network communication circuit is configured to: determine whether the body-coupled communication signal is transmitted from a body-area network controller via the body of the user; process the body-coupled communication signal in response to a determination that the body-coupled communication signal is from the body-area network controller; determine whether the body-coupled communication signal includes a request for the biofeedback sensor from the body-area network controller to adjust the processing of the biofeedback signal; control the sensor signal conditioning circuit, in response to a determination that the body-coupled communication signal includes the request for the biofeedback sensor to adjust the processing of the biofeedback signal, to adjust the processing of the biofeedback signal. determine whether the body-coupled communication signal is transmitted from a body-area network controller via the body of the user; process the body-coupled communication signal in response to a determination that the body-coupled communication signal is from the body-area network controller; determine whether the body-coupled communication signal includes a request for the biofeedback sensor from the body-area network controller to adjust the processing of the biofeedback signal; control the sensor signal conditioning circuit, in response to a determination that the body-coupled communication signal includes the request for the biofeedback sensor to adjust the processing of the biofeedback signal, to adjust the processing of the biofeedback signal. <EOS>