An apparatus comprising: a therapy device arranged to be implanted within a head/neck region of a patient, comprising: a microstimulator including a housing to encapsulate: stimulation circuitry ; a rechargeable power element ; and a control portion including a therapy manager arranged to control the stimulation circuitry based on sensed physiologic information received at the microstimulator ; at least one stimulation electrode; and a flexible lead extending between, and electrically connecting, the at least one stimulation electrode and the microstimulator, the therapy device being arranged to be implanted in a non-muscle, extravascular location with the at least one stimulation electrode coupled relative to a nerve to cause contraction of an upper-airway-patency muscle to treat obstructive sleep apnea; a patient support external to the patient and including coils and an external power element ; at least one external sensor external to the patient to sense physiologic information comprising respiratory information; and a charging station external to the patient and adapted to wirelessly transmit to the microstimulator and via the coils: power from the external power element to the rechargeable power element, and the sensed physiologic information from the at least one external sensor. a therapy device arranged to be implanted within a head/neck region of a patient, comprising: a microstimulator including a housing to encapsulate: stimulation circuitry ; a rechargeable power element ; and a control portion including a therapy manager arranged to control the stimulation circuitry based on sensed physiologic information received at the microstimulator ; at least one stimulation electrode; and a flexible lead extending between, and electrically connecting, the at least one stimulation electrode and the microstimulator, the therapy device being arranged to be implanted in a non-muscle, extravascular location with the at least one stimulation electrode coupled relative to a nerve to cause contraction of an upper-airway-patency muscle to treat obstructive sleep apnea; a microstimulator including a housing to encapsulate: stimulation circuitry ; a rechargeable power element ; and a control portion including a therapy manager arranged to control the stimulation circuitry based on sensed physiologic information received at the microstimulator ; stimulation circuitry ; a rechargeable power element ; and a control portion including a therapy manager arranged to control the stimulation circuitry based on sensed physiologic information received at the microstimulator ; at least one stimulation electrode; and a flexible lead extending between, and electrically connecting, the at least one stimulation electrode and the microstimulator, the therapy device being arranged to be implanted in a non-muscle, extravascular location with the at least one stimulation electrode coupled relative to a nerve to cause contraction of an upper-airway-patency muscle to treat obstructive sleep apnea; a patient support external to the patient and including coils and an external power element ; at least one external sensor external to the patient to sense physiologic information comprising respiratory information; and a charging station external to the patient and adapted to wirelessly transmit to the microstimulator and via the coils: power from the external power element to the rechargeable power element, and the sensed physiologic information from the at least one external sensor. <EOS>