Dr. Ikechukwu U. Ogbuanu from the University of South Carolina in Columbia recently found that children who were breastfed for 4 months or longer had larger lung capacities by the time they were 10 years old than children who were not.
While the children’s speedier exhalations could have been related to the beneficial components of breast milk, “the lung capacity cannot be really explained by the immune factors in the breast milk,” Ogbuanu told Reuters Health.
Most likely though, is that it is more difficult to drink from a breast than a bottle.