We began the study of human development by understanding that human development is more than just going from child to adult. Human development continues through the life-span, hence the term life-span development. Even though we look at human development across the life-span, there are still hallmarks or stages of human development that are considered distinct, especially in terms of psychosocial and physiological development. Explain the main stages of human development and describe what you think may be the important hallmarks of each stage. Remember to utilize your course and relevant outside readings to support your assumptions.