Babies may seem pretty helpless when you first bring them home, but in just a few months they'll be smiling and chuckling.

Before age 5, a baby's brain grows rapidly, undergoing a uniquely important moment in development. Yet, many don't understand just how critical it is for setting a person's foundation for thriving.

Early childhood educators and their advocates often talk about the crucial development that happens after a baby is born through age 5. What is happening to a baby’s brain that makes these earliest ...