Throughout most of history we walked barefoot and slept on the ground. We were directly connected to the Earth almost 24 hours a day.
Our body knows exactly what to do with what the Earth provides to us. When we connect to the Earth the amount of the electrons we absorb is governed by the amount our body needs to balance the electrical charge of our body. It is always the perfect amount.
It uses up electrons in many metabolic processes, including the basic process of cellular energy production, so there is always an ongoing demand. If you are grounding yourself on a routine basis, you are, in a sense, topping up your tank. And if you ground yourself routinely for many, many hours each day then you will likely find that it is very hard to develop chronic inflammation, the cause of most common chronic disease.