The Empire State Building towers will light purple today in honor of the third annual World Prematurity Day. Parent groups and organizations worldwide are joining together to raise awareness of the serious problem of premature birth. An estimated 15 million babies around the world are born too soon every year, including nearly half a million in the United States. Learn more about what you can do to help, and send your family and friends a “virtual hug” to show you care about premature babies at facebook.com/WorldPrematurityDay. Special thanks to the Empire State Building for supporting 2013 World Prematurity Day.