The document discusses how chiropractic care can help the body heal itself through proper functioning of the nervous system. It states that the nervous system can become disturbed by physical, chemical, or emotional stress, leading to subluxations that block its ability to heal. Subluxations are caused by the "3 T's" - tension, toxins, and trauma. Keeping the nervous system functioning properly through chiropractic care can help maintain and improve long-term health.