Tag Archives: seasonal affective disorder

Seasonal Affective Disorder (SAD)

Dr. Michael Terman Head Colombia University – Winter Depression Unit The benefits of exposure to relatively high concentrations of negative ions produced by high density negative ion generators have been well documented over decades. Literally dozens of studies published in … Continue reading

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Seasonal Affective Disorder (SAD)

Seasonal Affective Disorder, also known as SAD, winter blues, or seasonal depression, is a medical condition caused by the seasonal change in the amount of available sunlight. SAD (which affects as much as 10% of the population) is most pronounced … Continue reading

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