@CNN: After age 13, no new brain cells are created in a brain region linked to learning, according to a new study https://t.co/StG3a0uxxr https://t.co/vavDOpllaT

@CNN: After age 13, no new brain cells are created in a brain region linked to learning, according to a new study https://t.co/StG3a0uxxr https://t.co/vavDOpllaT