By Dr. Andrew Biggs, DC | Principled Chiropractic | Royal Palm Beach, FL As a parent, you know the milestones by heart. Rolling over. Sitting up. Crawling. Pulling to stand. First steps. First words. You watch for them, celebrate them, and quietly worry when they seem slow in coming. What most parents don't know, and what very few pediatricians discuss, is that every single one of those milestones is driven by the nervous system. And the nervous system, from the very first mo