Growth charts help document developmental patterns and identify signs of abnormal growth Sleep is an essential biopsychosocial process, meaning it is influenced by biological, psychological, and social factors

As the brain develops, once-automatic reflexes become controlled movements. Significant physical developmental changes occur during the first two years of life.

growth chart — chart used to identify typical weight, height, and head circumference for boys and girls. biopsychosocial — change influenced by biological, psychological, and social factors. reflex — involuntary movement in response to a stimulation. dynamic systems theory — theory that developmental behaviors and milestones are the result of interactions between systems, including those within the individual.