Imitation—the act of observing and copying the actions of others—is the most important mechanism of learning for infants, toddlers, and young children. Several studies have analyzed different patterns by which children imitate actions. One study showed that children not only imitate actions immediately after observing them, but they also reproduce
Read MoreIt is important to supplement the maternal diet with certain vitamins, such as vitamin B12, during pregnancy and lactation. But in some areas, especially in underdeveloped countries, vitamin supplements are not available,
Exclusive breastfeeding during the first six months of life is universally recommended, but some critics of this practice claim that many breastfed children, especially in developing countries, suffer from vitamin D deficiency