When the days shorten and the sun sinks low in the sky, that familiar winter slump sets in. There’s a fundamental reason for this seasonal fatigue: low levels of vitamin D—the “sunshine vitamin.”
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News Source: medicalxpress.com
When the days shorten and the sun sinks low in the sky, that familiar winter slump sets in. There’s a fundamental reason for this seasonal fatigue: low levels of vitamin D—the “sunshine vitamin.”
News Source: medicalxpress.com
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