I've been to five different chiropractors and I finally found one that I will stay with. He does biofeedback and is very gentle. He knows exactly where everything is. He knew exactly what previous injuries I had and they weren't even something that was bothering me. He even can tell when I am low in my supplements and minerals, such as niacin and magnesium and suggested how much I should take. He does not crack, and I have arthritis from all the chiropractors I have seen that cracked me.