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Light Therapy
For centuries, physicians believed a
human beings physiological make-up changed with the seasons.
Modern clinical research supports this theory of fluctuating behavior
patterns brought on by the reduction or lack of natural sunlight during
winter months, elucidating exactly how light therapy works.
The body has natural daily rhythms, which rely on the intensity of sunlight
to provide adjusting cues or prompts in order to maintain a precise balance.
These adjusting cues originate in the retina and create signals that pass
through the optic nerve to mid brain, initiating chemical changes. These
changes include increasing neurotransmitter serotonin, which provides
a sense of well being, and regulating and suppressing melatonin, a hormone
that influences normal sleep patterns and may have an effect on the recuperative
benefits of sleep.
Light therapy should be executed with full spectrum light, a blue-white
light in which all the colors of the
spectrum combine to produce a light resembling natural sunlight at noon.
Full spectrum light provides
balanced color, an important component in bright light therapy. Each color
wavelength evokes a different
biological response, supporting the metabolism of different nutrients
and influencing enzyme production.
A full spectrum, color balanced light, such s the LightenUp devices,
emits virtual sunlight, the most
beneficial type of light for bright light therapy.
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