00:01:29
CBS San Francisco
Bone Cause Disease Double Health Kim Mulvihill Lack Levels Low Muscle Proven Put Your Research Risk Suggests Sun Vital Vitamin Weakness Your Heart
Getting a little sun could be vital for your health. That's because lack of Vitamin D has been proven to cause bone and muscle weakness. But research suggests that low levels can also double the risk of heart disease. Dr. Kim Mulvihill reports.
CBS San Francisco | December 2, 2008
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