Hearing plays a major role in children’s cognitive development, language acquisition, communication skills and learning. Babies start hearing in the womb; first they distinguish the low frequency sounds, such as mother’s heartbeat, or the air floating in mom’s lungs. Later on during pregnancy, they start recognizing mother’s voice and even respond to it. Their ears are fully developed at 35 weeks, and they can hear pretty well at birth, especially high-pitched sounds. Talking, singing, and reading to, and babbling with your baby stimulate their brain, enhance language development, and improve your bonding.