See Your Inside on Instagram: "The Babinski sign is a neurological reflex commonly seen in babies under one year old 👶🧠. It occurs due to the immaturity of the corticospinal tract, the nerve pathway that connects the brain to the spinal cord 🔗🧠➡️🦴. When the sole of a baby’s foot is gently stroked 👣✨, the big toe moves upward ⬆️ while the other toes fan out 🌟 — a curious response that’s actually a healthy sign of neurological development ✅. As the central nervous system matures 🧬, typical