Singing to your infant can significantly boost the baby’s mood, according to a recent study. Around the world and across cultures, singing to babies seems to come instinctively to caregivers. Now, new findings support that singing is an easy, safe, and free way to help improve the mental well-being of infants. Because improved mood in infancy is associated with a greater quality of life for both parents and babies, this in turn has benefits for the health of the entire family, the researchers say. The study also helps explain why musical behaviors may have evolved in parents.