Medical Definition of infant 1 a : a child in the first year of life : baby b : a child several years of age 2 : a person who is not of full age : minor
Infant. The term "infant" is typically applied to young children under one year of age; however, definitions may vary and may include children up to two years of age. When a human child learns to walk, the term " toddler " may be used instead.
Middle childhood (usually defined as ages 6 to 12) is a time when children develop foundational skills for building healthy social relationships and learn roles that will prepare them for adolescence and adulthood. 1 Healthy People 2010 addressed the earliest stages of childhood through goals for Maternal, Infant, and Child Health,...
From an infant mental health perspective, parents are looked at as interacting participants in the developmental process, which does not permit a dichotomization of nature and nurture.