A chiropractic adjustment is the art of using a specific force in a precise direction, applied to a joint that is fixated, "locked up", or not moving properly. This adds motion to the joint, helping the bones gradually return to a more normal position and motion. The purpose of this safe and natural procedure is improved spinal function, improved nervous system function, and improved health. There are many ways to adjust the spine. Usually, the doctor's hands or a specially designed instrument delivers a brief and highly-accurate thrust. Some adjusting methods are quick, whereas others require a slow and constant pressure. After years of training and clinical experience, each chiropractic doctor becomes highly skilled in the delivery of a variety of adjusting approaches. All care is done to the individual patient’s tolerance and unique needs.