Join Now!      Login

Whole Person Wellness Program
 
healthy.net Wellness Model
Skip Navigation Links
 
 
FREE NEWSLETTER
   
   
   
 
Health Centers
Key Services
 
Breast Cancer?
More than three-quarters of women who get breast cancer are over whtat age?
over 40 years
over 45 years
over 50 years
over 55 years

 
 

 Vitamin D and winter mood  
 
The following is one in an ongoing series of columns entitled Natural Medicine Research by . View all columns in series
Ray Sahelian Increased levels of anxiety and depression during winter months occur in the normal population and are most likely related to short days with lower light levels. Some individuals are very sensitive to this decrease in sunlight and thus develop seasonal affective disorder (SAD), or "winter depression." More than 80 percent of SAD sufferers are women with an age of onset generally in the third decade. Symptoms of SAD include carbohydrate craving, hypersomnia, lethargy, and changes in circadian rhythms. Several theories have been proposed to explain SAD including disrupted circadian rhythms, delayed circadian rhythms, low levels of serotonin, and low levels of melatonin.

Could a lack of vitamin D also play a role in "winter depression?" Vitamin D is a steroid synthesized in the skin by conversion from 7-dehydrocholesterol in response to ultraviolet B radiation and subsequently undergoes hydroxylations in liver and kidney to become the active hormone 1,25-dihydroxyvitamin D3.

Researchers from the Department of Psychology, The University of Newcastle in Callaghan, New South Wales, Australia, gave forty-four healthy subjects 400 units, 800 units, or no vitamin D3 for five days during late winter in a randomized, double-blind study. Results on a self-report measure showed that vitamin D3 significantly enhanced positive affect and there was some evidence of a reduction in negative affect.

Comments:
Even though this was a very short-term study, adding 400 units to vitamin D to the regimen of someone who suffers with SAD appears to be a good idea. Could everyone benefit to some degree from additional D3 in the winter? Perhaps, but this is difficult to say for certain at this time. Lansdowne L, Provost S. Vitamin D3 enhances mood in healthy subjects during winter. Psychopharmacology 135:319-323, 1998.

      
 Comments Add your comment 

 About The Author
Ray Sahelian, M.D., is a popular and respected physician who has been seen on numerous television programs including NBC Today, Dateline NBC, and CNN, and quoted by countless major magazines such as Newsweek He......moreRay Sahelian MD
 
 From Our Friends
 
 
 
Popular & Related Products
 
Popular & Featured Events
Wellness Inventory Certification Training
     September 16-December 16, 2014
     Teleclass, CA USA
 
Additional Calendar Links
 
Stevia Products & Info
 
Dimensions of Wellness
Wellness, Breathing, dimension!

Home       Wellness       Health A-Z       Alternative Therapies       Find a Practitioner       Healthy Products       Bookstore       Wellness Inventory
Healthy Kitchen       Healthy Woman       Healthy Man       Healthy Child       Healthy Aging       Wellness Center       Nutrition Center       Fitness Center
Free Newsletter      What Doctor's Don't Tell You      Stevia.com      Discount Lab Tests      First Aid      Global Health Calendar      Privacy Policy     Contact Us
Disclaimer: The information provided on HealthWorld Online is for educational purposes only and IS NOT intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek professional medical advice from your physician or other qualified healthcare provider with any questions you may have regarding a medical condition.
Are you ready to embark on a personal wellness journey with our whole person approach?
Learn More/Subscribe
Are you looking to create or enhance a culture of wellness in your organization?
Learn More
Do you want to become a wellness coach?
Learn More
Free Webinar