LIGHT TREATMENT OF SLEEP MAINTENANCE INSOMNIA IN OLDER ADULTS Society of Light Treatment and Biological Rhythms Abst 1999;11:39
Phillip Gehrman, Jennifer Martin, and Sonia Ancoli-Israel

"Researchers have therefore attempted to use bright full-spectrum light as a treatment... An alternative,.. is light in the blue-green portion of the visible spectrum. An advantage of this treatment is that phase shifts may be achieved with less intense light which may be more easily tolerated. This study compared evening exposure to white full-spectrum light with light in the green portion of the spectrum, for the treatment of sleep maintenance insomnia in older adults" Abstract

Alternative Treatments for Sleep Maintenance Insomnia in the Elderly: White Light VS. Green Light. Sleep 1999; Vol 22 Supplement: S263
Philip Gehrman, Jennifer Martin, and Sonia Ancoli-Israel.

"Some subjects complained of the intensity of the white light. The green light (Sunnex Biotechnologies Lo-LIGHT) has less glare, so the greater effectiveness of this treatment may be due to the subjects having greater tolerance and therefore being more compliant." Abstract

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