Legendary
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Join Date: Feb 2009
Location: Somewhere near here
Posts: 11,427
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Legendary
Join Date: Feb 2009
Location: Somewhere near here
Posts: 11,427
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If that motion caused a concussion, you would be getting concussed many times each day. Many normal movements have more force than that.
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Mark in Idaho
"Be still and know that I am God" Psalm 46:10
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