Dr. Christian Gonzalez on Instagram: "One of my favorite all time videos… 🎶 A Mother’s voice is the first input to the baby’s nervous system. 🔉Not the words but the tone. It’s the energy behind the sounds. Is the mother in a state of nervous system regulation or internal chaos….that is the first input. 👉🏾There are a few research studies on this, here is one: Rand et al., PNAS (2014): “Maternal sounds elicit lower heart rate in newborns.” 🔬 What They Found: • A mother’s voice immediately low