A method of reducing or eliminating alcohol hangover symptoms in an individual identified as experiencing an alcohol hangover is disclosed. The method includes positioning a non-invasive nerve stimulation device on the individual's wrist, wherein the electrodes of the non-invasive nerve stimulation device are in electrically conductive contact with skin at acupuncture point P6 of the wrist. The method also includes generating a stimulation signal and delivering the stimulation signal to the acupuncture point P6 of the wrist to reduce or eliminate one or more alcohol hangover symptoms in the individual. The alcohol hangover symptoms could include headache, nausea, retching, vomiting, fatigue, gastrointestinal distress, drowsiness/lethargy, problems concentrating, dry mouth, and dizziness.