A new study conducted by Vanderbilt University found that by hearing their mother's voice, premature babies develop faster than usual.
Doctors used pacifiers that play the baby's mother singing a lullaby to determine the effect it would have on the babies.
If the babies sucked on the special pacifier the correct way, the device would play their mother’s song. Once the sucking stopped, the mother’s voice would stop. The babies were given the pacifiers 15 minutes a day for five days in a row.
Research showed the babies who were given the special pacifiers, developed better eating habits and had their feeding tubes removed earlier than other babies who did not have the pacifier.