What are Negative Ions?
Or more correctly, NEGATIVE-CHARGED Ions?
They're oxygen atoms with an extra electron. And they can help you feel better.
"Remember that feeling you've experienced near a waterfall or high in the
mountains? Those are two places that thousands of negative ions occur. They create an
effect on human biochemistry."
"The normal Ion count in fresh country air is 2,000 to 4,000 negative Ions per
cubic centimeter (about the size of a sugar cube). At Yosemite Falls, you'll experience
over 100,000 negative Ions per cubic centimeter. On the other hand, the level is far below
100 per cubic centimeter on the Los Angeles freeways during rush hour."