Ions are atoms or molecules that take on an electrical charge. In today’s modern and technological world we have too many positive ions and not enough negative ions. Air conditioning, forced-air heat, chemicals and even winds, rob the air of negative ions and put too many positive ions into the air. Heated salt crystals naturally create negative particles, so S.A.L.T. Chambers can have high concentrations of negative particles. Over 40 years of research shows that treatment of negative ions can dramatically increase energy, mental alertness, reduce stress and provide an enhanced overall sense of well-being.