Dangerous Daily Stress. 

Working like this causes a imbalance in the postural muscles, improper alignment of the the spinal bones, and spinal cord tension that pulls on the brain stem and spinal nerves.

This tension causes a myriad of conditions:  Headaches, shoulder tension, leg pain (sciatic), low back tightness, and autonomic nervous system stress, internal organ dysfunction and disease.

Straighten up, move correctly and get adjusted.