Radioactive substances in the earth’s crust and cosmic rays cause most ionization. But fire, crashing water like water falls and surf, and plants during photosynthesis can produce negative ions as well.

The discovery of negative ions in certain types of saunas a few years ago made headlines. It is clear that scientists have found that if the air is charged with too few negative ions and too many positives, we become anxious, fatigued and tense. This condition is known as ‘pos-ion poisoning,’ and often occurs as the result of weather disturbances, smog and some believe it is caused by central air conditioning. Pos-ion poisoning has been linked to various diseases.

To understand Ions, it is simple; they are invisible particles, either molecules or atoms, which bear an electric charge. Atoms, for instance, consist of an atomic nucleus that contains neutral neutrons and positively charged protons, as well as orbiting electrons that are negatively charged.

When an atom is in a neutral condition, the number of protons (+) and electrons (-) is equal. When the number of protons and electrons is not the same, the particle becomes an ion that is either positively or negatively charged.

	Positive Ion is an atom or molecule that has lost one or more electrons due to a high-energy impact. Natural forces that generate positive ions include the decay of radioactive minerals, radon gas, forest fires, lightning and ultraviolet rays.
	Negative Ion is an atom or molecule that has gained one or more extra negatively charged electrons. Negative ions are naturally generated by evaporating water, ocean surf, waterfalls and ionic minerals.