blood vessels and lets circulation move with less resistance. When the legs are starved of flow, they complain first: tingling, coldness, a dragging sensation, that weird “not fully awake” feeling in the feet.
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Now picture a crowded tunnel during rush hour. One lane is barely moving, horns are blaring, and everything backs up. Niacin is the moment the tunnel expands and traffic finally breathes again.
That widening matters even more far from the heart, where blood has the hardest job reaching the smallest vessels in the