Serve & Return — How Your Baby's Brain Is Built | Parenting Science Ep 2
▶ Serve & Return — How Your Baby's Brain Is Built | Parenting Science Ep 2 · Hinglish · 27 sec
By age 3 a child's brain is ~90% built, forming a million connections a second. The single biggest driver isn't expensive toys — it's back-and-forth interaction. The science of serve & return, and how to use it today.