Putting the vertebra back in place and getting the ligaments to hold the vertebra in correct position actually helps the spine to tighten and strengthen. If a person has spinal subluxations, or misalignment, it means that the ligaments are already loose and are allowing the vertebra to move to far or misalign and get stuck out of place. This misalignment causes joint inflammation and disc height reduction which can then cause the resultant spinal nerve pinching or irritation. The chiropractic adjustment helps to restore normal nerve function by realigning the vertebra and getting the ligaments to strengthen. There may be a need for nutritional support as well is this may be the reason why the ligaments have weakened in the first place.