I am not properly educated on this, but I do know you are always meant to lift and set things down by using your legs to either heighten or lower yourself and the item. You would do this by squatting, grabbing the item, and returning to a standing position, the opposite goes for setting it back down. Do NOT use your back, so don't bend over to do this.
Hello there , where is the question here ?
The brains sends nerve waves to other parts of the body to make our skin say that something hurts.
