The website Earthing [Warning: auto-playing video] sells earthing mats. The site states:
Throughout history, humans walked barefoot and slept on the ground. But modern lifestyle [(shoes, beds, and living indoors)] has disconnected us from the Earth's energy. Fascinating new research [indicates that this disconnect from Earth's soil] may actually contribute to chronic pain, fatigue, and poor sleep that plague so many people.
If you watch the 2-minute introductory video on the site, you will see that the product is being marketed as a way to receive energy (electrical charge) from the Earth by connecting your body to the Earth's soil through the electrical ground-bus of your home's AC power system - so called "earth grounding" of your body. It states "when you make direct contact with the earth, your body receives a charge of energy" which the site claims is good for your health.
My question: Do these products really work as claimed?
And if so, are they guaranteed to be safe to use?