The horrible cycle of stress
Say you had a particularly stressful day at work. You may find on the commute home that you all of a sudden become aware that your entire body is wracked by stiffness. From your neck through your shoulders and down into your lower back, almost all of the muscles that support your spine have tightened as a natural response to mental stress. This increase in tension begins to pull your spine out of alignment, causing nerve impingement and muscle spasm. What you do next defines the stress cycle.