Negative ion exists in the forest, periphery of waterfall, grassland and seashore in plenty. Human being feels refreshed and relaxed touching o the nature. We often feel refreshed in the forest or hot spring, at the periphery of waterfall and after the thunder.Soil on the earth, stream of water rain, and electric discharge phenomenon such as thunder are the source of negative ion provides well balanced ion into the body. The water splash separated minutely in the air such as in the waterfall become positively charge (+) and surrounding air become negatively charged (-) by air ionizing phenomenon. When molecule group of steam is mechanically separated by strong wind, or by the outside energy such as discharge by thunder, sunbeam, heat, radiation (cosmic rays, radiation from the earth's surface), the air with negative ion is generated as in the waterfall. Periphery of waterfall, brooklet of mountain torrent, therapeutic walk in the forest, plateau area, airy place, nearby the fountain in the park, outdoor hot spring etc., these places with plenty of negative ion are refreshing and comfortable places. The place with negative ion is the source of health.
There are places on the earth that have large oxygen molecule and small oxygen molecule. The air in the forest, plateau and morning sea etc. is small air (negatively ionized air) which includes plenty of negative ion, and stimulates oxygen to get into blood. Not only in the natural world, there are the places with plenty of negative ion, and stimulates oxygen to get into blood.
Not only in the natural world, there are the places with plenty of negative ion in apartment house or building. The first is bathroom with shower. The second is water closet. The third is airy veranda. The reason why a bathroom with shower contains plenty of negative ion is that water splashes in it like waterfall generation minute water splash (water molecule). The air around this area is filled with negative ion. Using shower or flushing toilet also generates plenty of negative ion.
Everyone should have experienced to feel refreshed taking shower hen in tired condition. Flushing toilet brings similar effect. Lavatory may be suitable place for meditation. Planting the garden or quipping with fountain or spring water flow etc. provides ion rich living.