Causes
The cause of SAD is not completely understood. It is clearly related to changes in seasonal light. Light affects cycles in the body. Lack of light during the winter months could possibly throw off levels of hormones and brain chemicals. This could contribute to the symptoms of SAD.
Scientists are also researching if SAD is related to lack of the chemical serotonin in the brain.
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition. Copyright © 2012 EBSCO Publishing All rights reserved.
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