Its exaggerated, but Jill Stein has a point. Protons and electrons in the human body... we are not getting enough electrons.
The human body is always charged by electro-magnetic field. Our two most electric organs are 'heart' and 'brain'. And when one is near electrical 'anything' the 'charge' is elevated. Prolonged charge will result in high strung, nervousness, anxiety, etc, even leading to seizures for some. The modern world is getting too much 'protons' on them, because they hardly touch the ground physically : I mean taking off the shoes and walking barefoot.
We are not touching the earth enough, which disposes the charges in the body. Called electrons. Go to the beach and come back relaxed. Walk barefoot in your yard. Wearing shoes, asphalt, high rise building, all nullifies the effect of electrons. One compensation we get is when taking shower, coz electrons is passed through water from pipe touching ground.
Earthing, physically touching ground, plants, etc. Free anti-aging, anti-oxidants. For faster healing, find a way to remain touched to earth for hours daily.