What age group is considered an infant?

An infant is typically defined as a child from birth up to 12 months of age. This stage includes the most rapid phase of physical and cognitive development, during which infants grow quickly, develop basic motor skills, and begin to engage with their environment.

The first six months are particularly crucial, as this is when infants start to show significant changes in their ability to interact socially, respond to stimuli, and develop attachment to caregivers. By the end of the first year, infants may begin crawling, standing, and even taking their first steps. Understanding this age range is important for babysitters and caregivers, as it informs their expectations regarding developmental milestones, feeding, and safety considerations for this vulnerable age group.