A study conducted by Japanese researchers analyzed data from 82,918 mother-child pairs across Japan and found that children who were exclusively breastfed for the first six months of life tend to sleep longer than those fed exclusively with adapted formula milk. The research, published in the European Journal of Clinical Nutrition, categorized children into four groups based on feeding practices and found that the group exclusively breastfed for the first six months had the lowest risk of short sleep duration—defined as less than 11 hours per day—compared to other groups. Researchers suggested that the composition of breast milk adapts to the child’s changing needs, unlike formula, which remains relatively constant. Additionally, melatonin—a hormone that aids sleep—is secreted into breast milk at night, helping infants regulate their internal clock and sleep patterns.
Bias read (Center): The article presents a scientific study on breastfeeding and sleep patterns without taking a stance on any political issue, policy, or controversy. It focuses purely on health-related findings and does not involve political actors, policies, or ideological framing.





