Described herein is a device and method for stimulating testosterone production in a subject. The device includes a first electrode, a second electrode, and a power source. The first electrode is configured to contact the skin in the pubic region of the subject and is electrically coupled to the power source. The second electrode is configured to contact the skin on the scrotum of the subject and is also electrically coupled to the power source. The power source is configured to deliver about 6 volts or less to the first or second electrodes. The device may further include a snug fitting undergarment for maintaining contact between the first and second electrodes and the subject's skin. The method is directed to the application of a low voltage to the testicles of a subject to stimulate the production of testosterone.
