The answer is quite simple. As soon as possible after birth. Most subluxations or problems with the spine start in utero with the birth position not to mention the stress with the birth process itself! This often startles people because they think if they do not have pain, why should they be examined? If this philosophy was applied to dental evaluations and treatment, the condition of your teeth would be quite nasty. You could have multiple cavities, and possibly gum disease before you ever had any symptoms. What a shame! Why not be proactive and find out early if you have a spinal problem, and then correct it or improve it as much as possible. You then have the option of maintaining a better quality of life, and enjoying optimum health.