If you have neck pain, a backache, or any number of other physical problems, your pain may be a manifestation of a misalignment. There are three main causes: Physical stress includes childbirth, poor posture, falls, sports injuries, and car accidents. Chemical stress includes smoking, poor nutrition, excess consumption of alcohol or caffeine, and pollution. Emotional stress, which can be caused by any number of problems, including difficulties with work, family, finances, or dealing with grief or anxiety. When these outside stressors overload your body’s ability to handle them, muscles can become chronically tense and pull the bones of the spinal column out of alignment. Nearly everyone experiences these misalignments.