Phototherapeutic apparatus for medical purposes, namely, a LED (light-emitting diode) light source for medical and aesthetic skin treatments; Non-invasive electronic neuromodulator device for medical use by healthy and impaired persons to enhance performance on cognitive tasks; Medical products, namely, biofeedback sensors; Medical electrodes; Heart rate monitors; Medical devices for treating sleep disorders; Electronic stimulation apparatus for nerves, skin or muscles for physical therapy purposes; Moxibustion apparatus; Acupuncture equipment; Relaxation therapy apparatus using light, sound, and vibration