By now, we've all heard the urging "lift with your legs, not with your back;" but we rarely hear the why behind it.
While in school we learned some spinal stats. The skinny being: An average spinal column can take around 1000 pounds of pressure while it is properly aligned. Get out of alignment (especially twisted) and that number drops to under 100 pounds. All it can take is a quick jerk in the wrong direction and a tiny little package can lay you flat.
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