In the past, men slept on the ground, albeit covered with skins to fend off the cold, but they still absorbed the Earth's energy as a Hertz frequency pulse. They walked in bare feet on the sand and the soil, or in some cultures, with the skin of an animal tied on the feet as protection, but the pulse still penetrated the leathers and furs to heal the body.
The science of Earthing or Grounding, as it is sometimes called, is both ancient and new. The new part is that some are rediscovering the lost connection to the planet and are relearning the benefits from connecting with our mother once more. As odd as it might sound, there are reports of synapses reconnecting and the lame walking once more as a result of the Earthing experience. Science has revealed that the ground in an ordinary electrical outlet is enough to provide the pulse but there still needs to be a distribution point. Sheets with metal filaments embedded in them can offer that pulse if the sheet is plugged into an outlet with the prongs removed and only the ground remaining. Better yet, leather soled shoes or barefoot walking on soil or sand, not city sidewalks of concrete, also benefit the well being. This is why those who spend vacations barefoot on beaches or lying on the sand feel so revitalized. They are absorbing the Earth's pulse, but when they return to their highrise city living, the energy soon fades.
There is much to read and learn on Earthing. The easiest method is to walk outside. For this I have purchased a pair of moose hide moccasins with moose hide soles and I will use these when the weather is warmer as my main footwear all summer. I am thinking of purchasing a sheet that can plug in to the house's grounding rod too, but ...well, just not yet. Starting with the moccasins, let's see how that goes first. Hmmm.