A spine has natural curves. It includes a top-of-the-shoulder curve and a lower back curve. These curves help the spine absorb stress from body movement and gravity. Normally, the spine should run straight down the middle of the back when viewed...
A spine has natural curves. It includes a top-of-the-shoulder curve and a lower back curve. These curves help the spine absorb stress from body movement and gravity. Normally, the spine should run straight down the middle of the back when viewed...
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