it means that you are electrically connected to the earth

i use an earthing mat (conductive composite plastic of some kind) at my desk and a sheet that has fine silver wire woven through it and both connect to the earth wire of my house

it helps at minimum balance you from electron stealing synthetic fabrics (this is the science behind the Mormon prohibition of synthetics) and it additionally reduces penetration through your body of radio frequency because it conducts across your skin to the earthing contact

being that both oxidation and reduction in the body are the chemical processes that involve electrons moving around, i figure that earthing helps ensure you have enough electrons to do all those redox processes

there is also some research that shows that at least for one thing, the bones have a sensitivity to magnetic fields and without regular reception of the normal earth magnetosphere resonances (schumann etc) that you don't have proper musculoskeletal health, and certainly the one case of a man 1 year up on ISS he came back like a grandma with severe osteoporosis

i have also got other things going on, possibly taking boron has helped, as if you are somehow deficient in boron, the kidneys eliminate calcium, magnesium and D3... i got this tip from my father's youngest sister, and it definitely changed my metabolism, in this case, it made me able to finally gain weight... but it also helps otherwise, i have also been taking it more often lately, about 30ml of 5g/L medical grade borax