And from the same rich article…
“Did you know the energy from the Earth can help you live a healthier life? The concept is known as earthing or grounding, which is nothing more than walking barefoot; grounding your body to the Earth. You can connect any part of your skin to the Earth, but one is especially potent, and that’s right in the middle of the ball of your foot; a point known to acupuncturists as Kidney 1 (K1). It’s a well-known point that conductively connects to all of the acupuncture meridians and essentially connects to every nook and cranny of your body.”
The Wellness Quest 