Despite the brain being the center of all bodily activity, it doesn't work on its own. Your brain uses your spinal cord to transport signals to all parts of the body. Since the spinal cord passes through our necks, that area is pretty vulnerable. If you feel persistent stiffness in your neck and back without any muscle strain, that may be a sign that a brain condition is affecting the spinal cord too. If you ever feel stiffness for unknown reasons, it's best to consult a specialist because something harmless can have fatal consequences if improperly treated.
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