Full-spectrum light travels from the eye to the brain, where it triggers the hypothalamus to send chemical messengers to regulate the autonomic functions of the body, such as blood pressure , breathing, digestion, and the immune system , as well as the body’s circadian rhythm. In order to maintain health, it may be important to be exposed to light containing the full wavelength spectrum found in natural light. Full-spectrum light therapy, bright light therapy, and ultraviolet light therapy are used by some clinicians for treating conditions that range from seasonal affective disorder to bulimia , and new applications are continually being suggested.
Last Review: 08-05-2014
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