Michael began his career studying how animals react to daily cycles of light and darkness. Later, still sponsored by the National Institute of Mental Health, he studied the antidepressant, and physiological, effects of light therapy in several hundred patients.
This work led to a set of new non-drug therapies, including 10,000 lux light, dawn/dusk simulation, and high-density negative air ionization. In 1988, he and Anna Wirz-Justice co-founded the Society for Light Treatment and Biological Rhythms (SLTBR), which he served as President (1991-93). He founded CET in 1994.
Founded in 1994, CET is an independent, non-profit professional organization dedicated to education and research on new environmental therapies.
We offer a variety of services, including background information, self-assessment questionnaires, and environmental therapy products.
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