A system and methods for improving emotional well-being linked to physiological change in the human voice box by stimulating vagus nerve connected to motor and sensory functions in the voice box. The system and method further comprising providing a computer based system to sense metadata concerning a patient's emotional activity based on voice analysis； using said system, obtaining metadata concerning said patient during said activity undertaken； analyzing said data； and from said analysis, diagnosing the patient's emotional activity and providing a signal generator in a patient's body, said signal generator coupled to a first and a second electrode, said first electrode and second electrode coupled to a vagus nerve of the patient, wherein said first electrode is coupled to a main trunk of a vagus nerve of the patient, and the second electrode is coupled to a larynx branch of a vagus nerve of the patient； to, upon receiving at least one body data stream, provide stimulation pulses to the vagus nerve via said at least one electrode to elicit emotional treatment plan associated with said patient's emotional activity； and treat emotional well-being of said patient.
