Studies have shown that some people become very depressed when negative ion counts are very low,
or in the wintertime (seasonal depression).
A high negative ion exposure appeared associated with feeling better about self, less sensitive,
and more responsive or innervated (energized). -From August, 1982 issue of Aviation,
Space, and Environmental Medicine.
"Results indicated that subjects had faster reaction times and reported feeling
significantly more energetic under negative Air Ion conditions than under normal air
- From Influence of Negative Air Ions on Human performance and Mood.
"... The introduction of negative ion generation increased the subjective rating of
alertness, atmospheric freshness, and environmental and personal warmth.
"Fresh country air has negative ions that have been demonstrated to both treat and prevent
From Depression: The Way Out, by Neil Nedley, M.D. REF