Research: MILLER,

Listed in Issue 117

Abstract

MILLER, Thorne Research, Inc., PO Box 25, Dover, ID 83825, USA, alanm@thorne.com, has reviewed (52 references) the epidemiology, aetiology and naturopathic treatment of Seasonal Affective Disorder (SAD). Abstract: There is much more seasonal difference in higher latitudes than near the equator. In a significant portion of the population of the northern USA, the shorter days of autumn and winter precipitate a syndrome that can consist of depression, fatigue, sleepiness, overeating, carbohydrate craving, weight gain, and loss of libido. If these symptoms persist in the winter, abate as the days grow longer, and disappear in the summer, the diagnosis of seasonal affective disorder (SAD) can be made. Many hypotheses exist regarding the biochemical mechanisms behind the predisposition toward this disease, including circadian phase shifting, abnormal pineal melatonin secretion, and abnormal serotonin synthesis. Although the mechanism behind this disease is not fully known, treatments appear to address each of the theories. Light therapy is a natural, non-invasive, effective, well-researched method of treatment for SAD. Various light temperatures and times of administration of light therapy have been studied, and a combination of morning and evening exposure appears to offer the best efficacy. Other natural methods of treatment have been studied, including L-tryptophane, St. John's wort, and melatonin.

Background

Methodology

Results

Conclusion

References

Miller AL. Epidemiology, etiology, and natural treatment of seasonal affective disorder. Alternative Medicine Review 10 (1): 5-13, Mar 2005.

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