Grounding, or earthing, involves direct physical contact with the earth's surface or using conductive devices connected to the ground to transfer electrons from the earth to the body. The concept is based on the principle that the earth's surface holds a negative electric charge due to an abundance of free electrons. When the human body makes contact with the earth, these electrons can transfer to the body, helping to neutralize positively charged free radicals and reduce oxidative stress. The science of grounding is supported by the understanding that the earth's surface maintains a relatively constant electric potential. Historically, humans have always been in direct contact with the ground through walking barefoot or sleeping on the earth. In modern times, however, we have become increasingly insulated from the earth due to the use of rubber-soled shoes and synthetic flooring, which can disrupt this natural electron transfer. One key aspect of the earth's electrical environment is the Schumann Resonance, a set of spectrum peaks in the extremely low frequency (ELF) portion of the earth's electromagnetic field spectrum. The fundamental Schumann Resonance frequency is approximately 7.83 Hz, which is often referred to as the earth's "heartbeat." This frequency is produced by the space between the earth's surface and the ionosphere acting as a resonant cavity. This resonance can influence human brainwave activity and overall physiological health, making grounding an important practice for aligning our bodies with the natural frequencies of the earth.