YEAH. YEAH. Right now, just listening to my son's cries, my heart rate spikes, my pupils dilate, stress hormones flood my body.This reaction is ancient because the very survival of our species has depended upon our ability to hear that cry, interpret it, and respond. When we do this well, babies thrive. But when we don't, the cost lasts a lifetime.I'm a developmental cognitive neuroscientist and a mom of two. So, I've seen in my lab and in my living room how early moments of connection set the blueprint for ...