A chronological map of the fetal brain reveals when key cells emerge and provides clues about autism and cancer.

The fetal nervous system — i.e., your baby's brain, spinal cord, and nerves — is one of the very first systems to develop. In fact, it's making big strides before you even know you're pregnant. Fetal ...

Your baby's brain is one of the first major organs to start developing – just three weeks in. And here's the wild part: It'll keep growing all the way into their 20s. The brain and spinal cord team up ...