During the 1800s, shoemakers created footwear using natural leather and pure copper plates or rivets, knowing that copper would conduct the earth's electrical charge directly into the human body to promote healing. Before the invention of rubber soles and synthetic plastics in the mid-twentieth century, humans maintained a continuous electrical connection with the earth through conductive materials.
Earth has an unlimited supply of free electrons that carry a natural negative charge. Copper is one of the most conductive metals in existence, acting as a direct bridge between the earth and the nervous system. When a person walks on the ground wearing copper-plated leather shoes, free electrons flow upward into the body and neutralize positively charged free radicals, which are the main drivers of chronic inflammation, cellular oxidation, and tissue damage.
This constant electrical exchange rapidly reduces blood viscosity, improves blood flow to the extremities, balances cortisol rhythms, and shifts the autonomic nervous system from a stressed state to a parasympathetic state of repair. In addition, direct skin contact with copper provides local antimicrobial protection and allows trace amounts of the mineral to be absorbed through the sweat glands of the feet, supporting collagen synthesis and joint health.
Modern footwear replaces conductive leather and copper with thick panels of insulating rubber and synthetic foam. This completely breaks the electrical circuit between the body and the earth.