Edit: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4378297/#!po=0....
https://www.amazon.com/Earthing-Most-Important-Health-Discov...
“””The cortisol effects described by Ghaly and Teplitz5 are particularly significant in the light of recent research showing that prolonged chronic stress results in glucocorticoid receptor resistance.”””
So again, what could grounding your body possibly have to do with it? And why would you need a mat plugged into your wall outlet to do this?
What does grounding have to do with it? Well my fellow human, we're still figuring this all out, in terms of embryology, we don't know how embyros fast-forward millions of years in evolution in a couple days of development, how the electric markers dictate [1] where eyes form in the foetus etc. furthermore the underlying bioelectric signals that regulate all chemical reactions in our huge soup we call a 'body' runs the best when we are connected (electric potential is close to 0) with the huge battery we call earth, the one we evolved upon connected, and only post WW2, had enough industrial power to put rubber shoes on everyone in modern world (all had leather shoes before which are conductive). yadda yadda i'm just regurgitating what i read in the book i mentioned in another comment. check it out if you think we don't know 100% about health, and western medicine hasn't figured it all out yet, esp at the bioelectric level.
It also means avoiding foods that feed the bad bacteria in your gut, which could lead to overgrowth of the bad and crowding out of the good bacteria. Refined sugar feeds bad bacteria.
In clinical terms, a healthy gut produces mucin, which is the lining or gut barrier, which promotes a healthy immune system (there are more immune cells in your gut than anywhere else in the body) and protects the rest of your body from endotoxin and inflammation.
There are lots of published studies and if you want to learn more, find a video online with Rhonda Patrick. She cites a bunch.