The riskiest day of your life is the day you are born. During birth, the design of the mother's pelvis and the baby's head will be subject to huge pressure. It takes an extraordinary battle for survival just to make it into the world. Modern medicine has done wonders to make birth safer than ever before. But it's a dangerous business for child and mother. Two newborns are featured in Birth: one needs life-saving treatment because the umbilical cord is wrapped around his neck, while meconium aspiration threatens another's health.