Is Vitamin D Deficiency the Hidden Cause of Fatigue?
1. Introduction: The Mystery of Constant Fatigue You sleep well, eat right, and still wake up tired — what’s draining your energy? If this sounds familiar, you’re not alone. Millions of people struggle with unexplained fatigue, foggy thinking, and a lack of motivation despite seemingly healthy habits. Often, we blame stress, poor sleep, or age. …
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