Growth and development refer to the physical, cognitive, and emotional changes that occur in an organism over the course of its lifespan. In the context of biology, this concept is often applied to the study of human development, but it can also be used to describe the changes that occur in other living organisms.
Human growth and development can be divided into several stages:
Infancy: This stage covers the period from birth to around 2 years of age. During this time, infants experience rapid physical growth and begin to develop basic motor skills.
Childhood: Childhood extends from the end of infancy to the onset of adolescence, typically around 12 years of age. Children continue to grow physically and begin to develop more complex cognitive and social skills.
Adolescence: This stage marks the transition from childhood to adulthood and involves significant physical and hormonal changes, as well as the development of identity and independence.
Adulthood: Adulthood encompasses the years following adolescence and is characterized by further physical and cognitive maturation, as well as the pursuit of career and personal goals.
Old age: In this final stage of life, individuals experience the effects of aging, including declines in physical and cognitive abilities.